body_n than_o in_o one_o of_o five_o or_o six_o month_n in_o a_o faetus_fw-la of_o nine_o month_n it_o almost_o fill_v the_o interstice_n which_o the_o lung_n after_o the_o birth_n begin_v to_o take_v up_o in_o the_o upper-part_n of_o the_o thorax_n the_o thymus_n after_o the_o birth_n gradual_o decrease_v except_o the_o upper-part_n of_o the_o cavity_n in_o the_o thorax_n be_v capacious_a enough_o for_o its_o reception_n as_o appear_v in_o a_o anatomical_a subject_n i_o late_o dissect_v of_o thirty_o year_n of_o age_n in_o who_o the_o thymus_n be_v very_o large_a i_o must_v confess_v i_o never_o yet_o meet_v with_o a_o subject_a though_o never_o so_o old_a in_o who_o the_o thymus_n be_v want_v in_o those_o bodiâ—â—_n the_o thymus_n be_v less_o than_o ordinary_a we_o find_v the_o subclavian_n gland_n those_o of_o the_o internal_a jugular_a vein_n and_o the_o glandule_n thyraidam_n large_a as_o they_o late_o appear_v in_o a_o boy_n of_o about_o eight_o year_n of_o age._n in_o woman_n the_o thymus_n and_o thyroid_fw-fr gland_n be_v large_a than_o in_o man_n but_o the_o subclavian_n gland_n be_v less_o by_o reason_n the_o claviculae_fw-la in_o woman_n be_v straight_o and_o short_a than_o those_o of_o man_n whence_o a_o much_o less_o interstice_n be_v frain_v for_o entertain_v those_o gland_n i_o have_v more_o than_o once_o find_v the_o lymphducts_a fill_v with_o wax_n which_o arise_v from_o the_o thymus_n and_o empty_v themselves_o into_o the_o upper-part_n of_o the_o thoracick-duct_a by_o inject_v that_o dust_n by_o the_o vesica_fw-la chyli_n see_v app._n fig._n 12._o d._n from_o what_o have_v be_v abovesaid_a it_o appear_v the_o thymus_n bear_v a_o proportion_n to_o the_o head_n whether_o in_o the_o faetus_fw-la or_o in_o body_n before_o they_o become_v adult_n which_o we_o conceive_v be_v in_o order_n to_o receive_v a_o proportionable_a quantity_n of_o lympha_fw-la derive_v from_o thence_o and_o as_o the_o subclavian_n gland_n of_o woman_n be_v less_o than_o those_o of_o man_n so_o the_o thyroide_v gland_n and_o thymus_n be_v large_a hence_o also_o it_o appear_v the_o thymus_n be_v a_o lymphatic_a gland_n and_o vary_v its_o magnitude_n according_a to_o the_o quantity_n of_o the_o lympha_fw-la that_o be_v necessary_o transmit_v through_o it_o from_o the_o superior_a part_n or_o as_o the_o neighbour_a lymphatic_a gland_n do_v more_o or_o less_o transmit_v their_o lympha_fw-la to_o it_o beside_o this_o common_a office_n of_o the_o thymus_n whether_o in_o the_o faetus_fw-la or_o adult_fw-la it_o have_v another_o use_n which_o be_v first_o suggest_v to_o i_o by_o inject_v a_o liquid_a into_o the_o thoracick-duct_a when_o find_v it_o not_o only_o fill_v the_o lymphducts_a of_o the_o thymus_n but_o the_o thymus_n itself_o be_v extend_v with_o it_o the_o like_a observation_n i_o since_o find_v be_v make_v by_o the_o expert_a anatomist_n dr._n tyson_n some_o time_n since_o whence_o i_o conceive_v the_o thymus_n and_o its_o lymphducts_a be_v diverticula_n to_o the_o chyle_n when_o too_o great_a a_o quantity_n be_v press_v foreward_n towards_o the_o subclavian_n vein_n i_o know_v it_o may_v be_v object_v that_o the_o valve_n of_o the_o lymphducts_a oppose_v this_o contrary_a course_n of_o liquor_n in_o they_o but_o repeat_v observation_n convince_v i_o that_o not_o only_o these_o lymphducts_a of_o the_o thymus_n which_o be_v large_a and_o have_v very_o few_o if_o any_o valve_n as_o appear_v by_o their_o be_v inject_v with_o wax_n but_o those_o of_o the_o loin_n and_o their_o gland_n from_o whence_o they_o arise_v be_v frequent_o fill_v with_o chyle_n when_o no_o compress_v be_v make_v on_o the_o thoracick-duct_a hence_o it_o be_v a_o milky_a liquor_n have_v be_v common_o find_v in_o the_o thymus_n but_o more_o frequent_a in_o that_o of_o a_o pâ—tus_n than_o iâ—_n a_o adult_n and_o that_o not_o only_o because_o the_o thymus_n and_o its_o lymphducts_a be_v much_o large_a proportionable_o in_o the_o former_a state_n or_o faetus_fw-la but_o the_o bend_a position_n of_o the_o thoracick-duct_a of_o the_o fetus_n in_o vterâ—_n render_v the_o ascent_n of_o the_o chyle_n by_o that_o dust_n more_o liable_a to_o regurgitate_v by_o the_o lymphducts_a of_o the_o thymus_n h_o h_n the_o forepart_n of_o the_o diaphragma_n free_v from_o the_o cartilaginous_a end_n of_o the_o rib_n and_o pin_v up_o the_o twenty-second_a table_n fig._n 1._o the_o heart_n with_o part_n of_o the_o trunk_n of_o the_o great_a vein_n and_o artery_n cut_v off_o a_o a_o the_o proper_a membrane_n of_o the_o heart_n a_o portion_n of_o which_o be_v raise_v and_o hang_v down_o b_o b_o the_o left_a side_n of_o the_o heart_n adorn_v with_o in_o coronary_a vessel_n c_o ψ_n part_v of_o the_o right_a auricle_n of_o the_o heart_n c_o the_o left_a auricle_n on_o the_o basis_n of_o the_o heart_n d_o the_o cone_n of_o the_o heart_n e_o the_o vena_fw-la cava_fw-la which_o convey_v the_o refluent_a blood_n from_o the_o whole_a field_n of_o the_o body_n into_o the_o right_a auricle_n of_o the_o heart_n when_o the_o heart_n iâ—_n iâ—_n systole_n whence_o the_o blood_n be_v again_o transmit_v into_o the_o right_a ventricle_n of_o the_o heart_n when_o it_o be_v in_o diastole_n so_o that_o when_o the_o auricles_n of_o the_o heart_n be_v in_o diastole_n or_o relaxation_n they_o be_v fill_v with_o blood_n and_o the_o heart_n itself_o be_v in_o systole_n or_o contraction_n and_o vice_n versa_fw-la when_o the_o heart_n be_v in_o diastole_n the_o auricles_n be_v in_o systole_n f_o the_o arteria_fw-la pulmonalis_fw-la or_o vena_fw-la arteriosa_fw-la which_o carry_v the_o blood_n from_o the_o right_a ventricle_n of_o the_o heart_n into_o the_o lung_n g_o the_o vena_fw-la pulmonica_n or_o arteria_fw-la venosa_fw-la which_o convey_v the_o refluent_a blood_n from_o the_o lung_n into_o the_o left_a auricle_n and_o ventricle_n of_o the_o heart_n not_o unlike_o the_o vena_fw-la cava_fw-la etc._n etc._n h_o the_o arteria_fw-la magna_fw-la arise_v out_o of_o the_o left_a ventricle_n which_o convey_v the_o mass_n of_o blood_n from_o the_o heart_n through_o the_o field_n of_o the_o body_n from_o who_o capillary_a extremity_n the_o vein_n be_v continue_v as_o appear_v by_o a_o microscope_n in_o the_o transparent_a part_n of_o live_a animal_n see_v app._n fig._n 4._o and_o 5._o fig._n 2._o the_o heart_n divest_v of_o its_o external_n membrane_n and_o carnous_a fibre_n after_o boil_a so_o that_o the_o disposition_n of_o the_o subjacent_a fibre_n may_v appear_v the_o way_n of_o prepare_v the_o heart_n to_o exhibit_v this_o disposition_n of_o its_o fibre_n may_v be_v practise_v after_o the_o follow_a manner_n the_o heart_n with_o portion_n of_o the_o trunk_n of_o the_o large_a blood-vessel_n be_v take_v off_o the_o blood_n as_o well_o within_o its_o ventricles_n as_o blood-vessel_n be_v evacuate_v then_o with_o tow_n or_o piece_n of_o rag_n fill_v the_o ventricles_n auricles_n and_o large_a vessel_n on_o the_o basis_n of_o the_o heart_n the_o mouth_n of_o the_o large_a blood-vessel_n be_v stitch_v up_o lest_o their_o content_n shall_v be_v extrude_v by_o the_o contraction_n of_o the_o heart_n in_o boil_a this_o do_v boyl_n it_o according_a to_o its_o bulk_n if_o it_o be_v the_o heart_n of_o a_o ox_n etc._n etc._n boyl_n it_o four_o or_o five_o hour_n if_o of_o a_o man_n one_o or_o two_n n._n b._n this_o figure_n be_v print_v reverse_v a_o a_o sinus_n place_v between_o both_o ventricles_n in_o which_o a_o large_a trunk_n of_o one_o of_o the_o coronary_a artery_n be_v convey_v b_o the_o cochleated_a or_o oblique_a descend_a order_n of_o fibres_n of_o the_o left_a ventricle_n of_o the_o heart_n c_o the_o external_n and_o oblique_a descend_v order_n of_o fibres_n of_o the_o right_a ventricle_n which_o decussate_fw-it the_o former_a or_o subjacent_a fibre_n in_o acute_a angle_n d_o part_v of_o the_o arteria_fw-la pulmonalis_fw-la e_o the_o aorta_fw-la ee_o the_o trunk_n of_o the_o coronary_a artery_n f_o the_o right_a auricle_n g_o the_o left_a fig._n 3._o a_o the_o sinus_n above_o mention_v between_o the_o ventricles_n b_o the_o tortuous_a disposition_n of_o the_o fibre_n of_o the_o right_a ventricle_n c_o those_o of_o the_o left_a the_o heart_n consist_v chief_o of_o divers_a strata_n of_o oblique_a descend_v fibre_n the_o external_n pass_o more_o straight_o or_o less_o contort_a than_o the_o internal_a whence_o it_o happen_v that_o the_o external_n fibres_n be_v see_v to_o decussate_fw-it they_fw-mi internal_a with_o acute_a angle_n the_o former_a arise_v from_o the_o basis_n of_o the_o heart_n at_o the_o root_n of_o the_o blood-vessel_n and_o end_v in_o the_o cone_n the_o late_a arise_v from_o the_o same_o place_n and_o terminate_v either_o in_o the_o '_o parietes_fw-la of_o the_o ventricles_n or_o columnae_n carneae_fw-la fig._n 7._o g_o g_o from_o which_o divers_a tenditious_a filament_n be_v continue_v to_o the_o lower-part_n of_o the_o tricuspid_n
and_o mitral_a valve_n d_o the_o aorta_fw-mi divide_v between_o its_o origin_n from_o the_o heart_n and_o valve_n and_o recline_v to_o one_o side_n hang_v by_o its_o twoâ—_n coronary_a artery_n express_v fig._n 2._o e_fw-la e._n e_o e_o the_o three_o semilunary_a valve_n of_o the_o aorta_fw-mi which_o hinder_v a_o return_n of_o the_o blood_n into_o the_o left_a ventricle_n when_o the_o heart_n be_v in_o diastole_n fig._n 4._o the_o concourse_n of_o fibres_n near_o the_o cone_n of_o the_o heart_n as_o they_o appear_v after_o a_o transverse_a section_n fig._n 5._o some_o fasciculi_fw-la of_o fibres_n of_o the_o left_a ventricle_n of_o the_o heart_n a_o b_o the_o two_o tendinous_a extremity_n of_o the_o oblique_a fleshy_a fibre_n express_v fig._n two_o 3._o c_o the_o fleshy_a part_n of_o the_o fibre_n between_o the_o two_o tendon_n d_o the_o collateral_a fibre_n which_o appear_v in_o divide_v the_o last_o mention_v fasciculi_fw-la nor_o be_v these_o any_o other_o than_o part_v of_o the_o fibre_n of_o the_o divide_v fasciculus_fw-la and_o lay_v parallel_n to_o each_o other_o according_a to_o their_o length_n the_o blood-vessel_n and_o nerve_n pass_v between_o these_o fibre_n make_v a_o reticular_a appearance_n when_o divide_v as_o here_o express_v fig._n 6._o the_o right_a auricle_n and_o part_n of_o the_o basis_n of_o the_o heart_n a_o a_o the_o right_a auricle_n expanded_a b_o b_o b_o the_o three_o tricuspid_a valve_n two_o of_o which_o be_v extend_v by_o pin_v out_o their_o tendon_n derive_v from_o the_o columnae_n carneae_fw-la see_v fig._n 7._o g_o g_o fig._n 10._o a_o inferior_n the_o office_n of_o the_o auricles_n be_v to_o receive_v part_n of_o the_o refluent_a blood_n whilst_o the_o heart_n be_v in_o systole_n and_o to_o discharge_v that_o blood_n again_o into_o the_o ventricles_n of_o the_o heart_n when_o it_o be_v in_o diastole_n so_o that_o the_o auricles_n of_o the_o heart_n seem_v as_o diverticula_n to_o the_o blood_n in_o its_o pass_n into_o its_o ventricles_n else_o a_o repercussion_n of_o the_o blood_n in_o the_o vein_n will_v necessary_o happen_v in_o the_o systole_n of_o the_o heart_n which_o will_v prevent_v the_o regular_a influx_n of_o the_o blood_n to_o the_o ventricles_n fig._n 7._o the_o heart_n with_o its_o left_a ventricle_n open_v a_o the_o inside_n of_o the_o vena_fw-la pulmonalis_fw-la b_o the_o aorta_fw-mi in_o like_a manner_n open_v c_o c_o the_o septum_fw-la cordis_n which_o divide_v the_o right_a ventricle_n from_o the_o left_a d_o the_o left_a auricle_n entire_a which_o in_o humane_a body_n be_v very_o little_a as_o appear_v by_o this_o figure_n and_o the_o trunk_n of_o the_o pulmonick_a vein_n very_o large_a d_o the_o trunk_n of_o the_o arterìa_n pulmonica_n cut_v off_o e_o e_o two_o of_o the_o three_o semilunary_a valve_n at_o the_o beginning_n of_o the_o arteria_fw-la magna_fw-la which_o hinder_v the_o reflux_n of_o the_o blood_n when_o the_o heart_n be_v in_o diastole_n in_o which_o action_n they_o be_v express_v fig._n 3._o e_o e._n f_o f_o the_o two_o mitral_a valve_n in_o the_o pulmonick_a vein_n which_o prevent_v the_o blood_n repass_v that_o vessel_n when_o the_o heart_n be_v in_o systole_n g_o g_o the_o carneae_fw-la columnae_n compose_v of_o muscular_a fibres_n derive_v from_o those_o of_o the_o side_n of_o the_o heart_n whençe_v divers_a small_a tendinous_a filament_n do_v arise_v and_o be_v faltn_v to_o the_o inferior_a limbus_n of_o the_o mitral_a valve_n by_o which_o mean_v those_o valve_n be_v draw_v down_o towards_o the_o cone_n of_o the_o heart_n and_o prevent_v the_o blood_n from_o pass_v out_o again_o that_o way_n when_o the_o heart_n be_v in_o systole_n i_o know_v dr._n lower_v in_o his_o accurate_a book_n de_fw-fr cord_n suppose_n that_o these_o mitral_a and_o tricuspid_a valve_n be_v relax_v in_o the_o systole_n of_o the_o heart_n and_o by_o their_o rise_n up_o stop_v up_o the_o passage_n of_o the_o vein_n but_o if_o the_o structure_n of_o the_o heart_n and_o these_o part_n be_v attentive_o consider_v in_o a_o large_a animal_n as_o in_o a_o ox_n etc._n etc._n it_o will_v appear_v reasonable_a to_o conceive_v that_o these_o mitral_a and_o tricuspid_a valve_n be_v rather_o draw_v down_o than_o suffer_v extrusion_n upward_o nor_o need_v nature_n have_v be_v at_o any_o trouble_n in_o make_v those_o valve_n at_o the_o orifice_n of_o the_o vein_n any_o otherwise_o than_o the_o reverse_n of_o the_o semilunary_a valve_n of_o artery_n if_o as_o the_o expert_a dr._n low_a suppose_n they_o be_v drive_v up_o and_o extend_v like_o a_o sail_n with_o wind_n when_o the_o heart_n be_v in_o systole_n but_o by_o fasten_v those_o tendinous_a fibre_n to_o the_o lower-part_n of_o those_o tricuspid_n and_o mitral_a valve_n which_o be_v of_o a_o conical_a figure_n seem_v to_o i_o to_o be_v a_o argument_n that_o they_o can_v suffer_v such_o extension_n upward_o without_o let_v some_o part_n of_o the_o blood_n repass_v they_o in_o the_o systole_n of_o the_o heart_n beside_o there_o must_v constant_o a_o considerable_a part_n of_o the_o blood_n remain_v in_o the_o ventricles_n of_o the_o heart_n if_o those_o valve_n be_v so_o dispose_v in_o its_o systole_n which_o i_o think_v the_o dr._n himself_o seem_v no_o where_o to_o conceive_v but_o on_o the_o contrary_a the_o ventricles_n of_o the_o heart_n be_v with_o great_a strength_n adequate_o compress_v in_o its_o systole_n for_o which_o end_v the_o inside_n of_o its_o ventricles_n be_v compose_v of_o divers_a fleshy_a column_n between_o which_o divers_a intersticia_n necessary_o result_v that_o be_v elegant_o express_v in_o this_o figure_n by_o which_o mean_n the_o ventricles_n be_v more_o exact_o close_v in_o their_o systole_n than_o they_o can_v have_v be_v have_v they_o be_v smooth_a fig._n 8._o the_o heart_n with_o its_o right_a ventricle_n open_v a_o the_o inside_n of_o the_o right_a auricle_n of_o the_o heart_n as_o it_o appear_v when_o open_v and_o pin_v out_o b_o the_o left_a auricle_n entire_a c_o the_o coronary_a blood-vessel_n of_o the_o heart_n from_o these_o particular_o from_o the_o artery_n spring_v those_o of_o the_o auricles_n and_o large_a blood-vessel_n of_o the_o heart_n as_o the_o accurate_a ruysch_n describe_v they_o in_o his_o anatomical_a epistle_n pag._n 15._o the_o nerve_n of_o the_o heart_n spring_n from_o the_o eight_o pair_n and_o intercostal_a nerve_n a_o particular_a description_n of_o which_o may_v be_v find_v in_o dr._n lower_n book_n de_n cord_n and_o vieussenius_fw-la nervographia_fw-la d_o part_v of_o the_o right_a ventricle_n of_o the_o heart_n open_v e_o a_o portion_n of_o the_o vena_fw-la arteriosa_fw-la or_o arteria_fw-la pulmonalis_fw-la divide_v and_o expand_v f_o f_o f_o the_o three_o valvulae_fw-la sigmoide_n or_o semilunare_n which_o oppose_v the_o return_n of_o the_o blood_n from_o the_o lung_n by_o the_o arteria_fw-la pulmonica_n into_o the_o heart_n when_o it_o be_v in_o diastole_n fig._n 9_o a_o a_o the_o heart_n cut_v transverse_o b_o that_o part_n of_o it_o next_o its_o basis._n c_o that_o next_o its_o cone_n d_o d_o the_o right_a ventricle_n of_o the_o heart_n e_o the_o leave_v f_o the_o septum_fw-la cordis_n or_o the_o partition_n between_o the_o two_o ventricles_n of_o the_o heart_n g_o g_o a_o stylus_fw-la put_v through_o the_o vena_fw-la cava_fw-la into_o the_o right_a ventricle_n of_o the_o heart_n h_o h_n another_o pass_v from_o the_o same_o ventricle_n through_o the_o arteria_fw-la pulmonalis_fw-la i_o i_o a_o stylus_fw-la in_o the_o left_a ventricle_n of_o the_o heart_n pass_v out_o at_o the_o arteria_fw-la magna_fw-la k_o k_o another_o insert_v into_o the_o same_o ventricle_n by_o the_o vena_fw-la pulmonica_n fig._n 10._o a_o inferior_n a_o portion_n of_o the_o columna_fw-la carnis_fw-la of_o one_o of_o the_o ventricles_n of_o the_o heart_n cut_v off_o see_v fig._n 7._o g_o g_o in_o situ_fw-la b_o the_o tendinous_a fibre_n derive_v from_o the_o fleshy_a column_n and_o fasten_v to_o the_o inferior_a margin_n of_o one_o of_o the_o tricuspid_a valve_n a_o a_o superior_n portion_n of_o the_o tricuspid_a valve_n fig._n 11._o the_o coronary_a blood-vessel_n of_o the_o heart_n as_o they_o appear_v on_o its_o surface_n when_o inject_v after_o dry_n the_o whole_a heart_n a_o a_o the_o artery_n fill_v with_o mercury_n fix_v with_o tin_n b_o b_o the_o vein_n extend_v with_o wax_n fig._n 12._o a_o portion_n of_o the_o vena_fw-la pulmonalis_fw-la next_o the_o basis_n of_o the_o heart_n a_o a_o part_n of_o the_o mitral_a valve_n pin_v out_o by_o their_o tendon_n fig._n 13._o the_o inner_a surface_n of_o a_o portion_n of_o the_o arteria_fw-la magna_fw-la cut_v off_o at_o the_o basis_n of_o the_o heart_n when_o divide_v and_o expand_v a_o a_o a_o a_o the_o three_o semilunary_a valve_n well_o express_v when_o pin_v out_o one_o of_o they_o be_v cut_v through_o in_o its_o middle_a in_o divide_v the_o great_a artery_n fig._n
the_o artery_n of_o a_o humane_a foetus_fw-la inject_v with_o wax_n and_o display_v after_o dissection_n 1_o the_o aorta_n or_o arteria_fw-la magna_fw-la cut_v from_o its_o origin_n at_o the_o orifice_n of_o the_o left_a ventricle_n of_o the_o heart_n 2_o the_o trunk_n of_o the_o great_a coronal_z artery_n of_o the_o heart_n arise_v from_o the_o beginning_n of_o the_o aorta_fw-mi the_o rise_v of_o the_o lesser_a coronal_z artery_n not_o appear_v in_o this_o position_n of_o the_o arteria_fw-la magna_fw-la 3_o the_o canalis_fw-la arteriosus_n fill_v with_o wax_n by_o inject_v it_o into_o the_o aorta_n this_o arise_v from_o the_o upper_a part_n of_o the_o trunk_n of_o the_o pulmonick_a artery_n near_o its_o two_o ramification_n which_o pass_v into_o the_o lung_n and_o after_o a_o oblique_a descent_n under_o the_o beginning_n of_o the_o aorta_fw-mi empty_v itself_o into_o the_o upper_a part_n of_o its_o descend_v trunk_n as_o here_o express_v 28._o beside_o this_o communication_n between_o the_o right_a ventricle_n of_o the_o heart_n of_o a_o foetus_fw-la and_o arteria_fw-la magna_fw-la there_o be_v another_o call_v foramen_fw-la ovale_fw-mi by_o which_o part_n the_o blood_n at_o its_o entrance_n into_o the_o right_a ventricle_n pass_v into_o the_o pulmonick_a vein_n and_o the_o left_a ventricle_n of_o the_o heart_n thence_o to_o the_o aorta_fw-mi hence_o it_o appear_v that_o the_o blood_n which_o flow_v into_o the_o right_a ventricle_n of_o the_o heart_n of_o the_o foetus_fw-la pass_v immediate_o by_o the_o canalis_fw-la arteriosus_n to_o the_o arteria_fw-la magna_fw-la as_o well_o as_o the_o blood_n of_o the_o left_a ventricle_n which_o be_v receive_v immediate_o from_o the_o vena_fw-la câ—â—a_fw-la or_o right_a article_n of_o the_o heart_n into_o the_o pulmonick_a vein_n and_o leave_v ventricle_n so_o that_o the_o blood_n in_o the_o foetus_fw-la which_o run_v into_o the_o right_a ventricle_n pass_v immediate_o to_o the_o aorta_fw-mi by_o the_o systole_n of_o the_o heart_n as_o well_o as_o the_o blood_n of_o the_o left_a ventricle_n not_o do_v any_o part_n of_o the_o blood_n of_o the_o right_a ventricle_n pass_v into_o the_o left_a or_o any_o blood_n of_o the_o left_a ventricle_n first_o pass_v the_o right_n as_o in_o the_o adult_n hence_o the_o heart_n in_o the_o foetus_fw-la may_v be_v say_v to_o have_v but_o one_o ventricle_n in_o effect_n since_o the_o blood_n which_o pass_v one_o do_v not_o come_v into_o the_o other_o before_o it_o arrive_v at_o the_o aorta_fw-mi after_o the_o birth_n when_o the_o infant_n have_v receive_v air_n into_o the_o lung_n and_o their_o vesciculae_fw-la remain_v distend_v and_o the_o ramification_n of_o the_o pulmonick_a artery_n and_o vein_n consequent_o be_v more_o display_v the_o blood_n thâ—â—_n begin_v to_o pass_v their_o extremity_n more_o free_o than_o before_o and_o the_o arterious_a channel_n at_o length_n become_v neglect_v as_o well_o as_o the_o foramen_fw-la ovale_fw-mi the_o former_a become_v a_o ligâ—â—â—â—_n and_o the_o latter_a close_v up_o the_o too_o early_a occlusion_n of_o these_o passage_n in_o child_n often_o produce_v many_o disorder_n as_o inflammation_n of_o divers_a part_n of_o the_o head_n neck_n and_o lungsâ—_n in_o which_o case_n bleed_v be_v of_o great_a use_n of_o this_o i_o have_v meet_v with_o many_o inâ—â—â—nces_n in_o the_o dissection_n of_o child_n i_o have_v often_o find_v the_o foramen_fw-la ovale_fw-mi open_v in_o the_o adult_n the_o canalis_fw-la arteriosus_n for_o what_o i_o have_v observe_v close_v soon_o than_o that_o foramen_fw-la 4_o 4_o the_o subclavian_n artery_n arise_v from_o the_o arteria_fw-la magna_fw-la to_o which_o the_o axillary_a artery_n and_o those_o of_o the_o arm_n 23_o 23_o be_v congee_v 5_o 5_o the_o two_o carotid_a artery_n arise_v from_o aorta_n between_o the_o subclavian_n artery_n 6_o 6._o the_o two_o vertebral_n artery_n arise_v from_o the_o subâ—leuâ—culae_fw-la which_o pass_v through_o all_o the_o transverse_a process_n of_o the_o vertebra_n of_o the_o neck_n from_o whence_o they_o be_v free_v 7_o 7._o the_o artery_n which_o convey_v blood_n to_o the_o low_a part_n of_o the_o face_n tongue_n adjacent_a muscle_n and_o glandule_n 8_o 8._o the_o trunk_n of_o the_o temporal_a artery_n spring_v from_o the_o carotide_n and_o give_v branch_n to_o the_o parcâ—ide_n gland_n 9_o 9_o as_o well_o as_o the_o temple_n 10_o 10._o also_o to_o the_o neighbour_a muscle_n hairy-scalp_n and_o forehead_n 11_o 11._o the_o occipital_a artery_n who_o trunk_n pass_v close_o by_o the_o mammiform_a process_n and_o be_v distribute_v on_o the_o hinder_v paâ—â—_n of_o the_o hairy-scalp_n where_o they_o be_v inosculate_v with_o the_o branch_n of_o the_o temporal_a artery_n 12._o diâ—ers_n artery_n which_o carry_v blood_n to_o the_o fauces_fw-la gaâ—gaâ—con_n and_o muscle_n of_o those_o pâ—â—â—â—_n 13_o 13._o the_o contortion_n of_o the_o carotid_v artery_n as_o they_o pass_v the_o basis_n of_o the_o skull_n to_o the_o brain_n 14_o 14._o those_o part_n of_o the_o carotid_v artery_n where_o they_o pass_v by_o each_o side_n of_o the_o solla_fw-it tâ—â—ica_fw-la where_o diâ—eâ—â—_n small_a branch_n do_v arise_v from_o they_o and_o help_v to_o compose_v the_o rete_fw-la 〈◊〉_d which_o be_v more_o conspicuous_a in_o quadrupedes_fw-la than_a men._n 15_o 15._o the_o contortion_n of_o the_o vertebra_n artery_n as_o they_o pass_v the_o transverse_a process_n of_o the_o first_o vendâ—â—â—â—_n â—â—_z the_o neck_n towards_o the_o great_a foramen_fw-la of_o the_o os_fw-mi occiputis_n i_o have_v more_o than_o once_o take_v notice_n that_o the_o cavity_n of_o these_o artery_n where_o they_o be_v conâ—eâ—â—ed_v have_v be_v large_a than_o their_o inferior_a trunk_n whereby_o the_o impetus_fw-la of_o the_o blood_n must_v necessary_o be_v very_o much_o lessen_v as_o well_o as_o by_o their_o contortion_n only_o in_o quadâ—â—pedes_n the_o angle_n of_o these_o contortion_n of_o the_o artery_n of_o the_o brain_n be_v more_o acute_a which_o in_o they_o be_v the_o more_o necessary_a to_o lessen_v the_o force_n of_o the_o blood_n at_o their_o extremity_n by_o reason_n of_o the_o horizontal_n position_n of_o their_o trunk_n 16._o the_o vertebral_n artery_n where_o they_o ascend_v on_o the_o medulla_n oblongata_fw-la towards_o the_o 〈◊〉_d protuberance_n or_o poâ—a_n varâ—â—_n 17_o 17._o the_o communicant_a branch_n between_o the_o carotid_n and_o vertebral_n artery_n in_o this_o subject_a somewhat_o large_a than_o we_o common_o find_v they_o 18_o 18._o the_o ramification_n of_o the_o artery_n within_o the_o skull_n the_o large_a trunk_n of_o which_o lie_v between_o the_o lobe_n of_o the_o brain_n and_o in_o its_o sâ—â—â—i_n from_o the_o extremity_n of_o these_o artery_n of_o the_o brain_n be_v continue_v its_o vein_n who_o trunk_n vary_v much_o in_o their_o position_n from_o the_o artery_n they_o enter_v the_o brain_n at_o its_o basis_n and_o distribute_v themselves_o as_o above_o note_v whereas_o the_o trunk_n of_o the_o vein_n be_v extend_v on_o the_o surface_n of_o the_o brain_n and_o discharge_v their_o blood_n into_o the_o longitudinal_n sâ—râ—s_v nor_o do_v the_o vein_n of_o the_o brain_n accompany_v its_o artery_n at_o their_o ingress_n as_o in_o other_o part_n or_o the_o artery_n and_o vein_n of_o the_o dura_n meter_n pass_v the_o same_o foramen_n in_o the_o basis_n of_o the_o skull_n 19_o 19_o the_o artery_n of_o the_o larynx_n thyroid_fw-fr glandule_n and_o adjacent_a muscle_n and_o part_n arise_v from_o the_o subclavian_n artery_n 20_o 20._o other_o arise_v near_o the_o former_a which_o convey_v blood_n to_o the_o muscle_n of_o the_o neck_n and_o scapulâ—_n 21_o 21._o the_o mammariae_fw-la which_o arise_v also_o from_o the_o subclavian_n artery_n and_o descend_v on_o the_o cartilage_n of_o the_o true_a râ—bs_n internal_o about_o half_a a_o inch_n distant_a on_o each_o side_n the_o or_o pectoris_fw-la or_o sâ—rmâ—n_o some_o branch_n of_o these_o pass_n through_o the_o pectoral_a as_o well_o as_o iâ—â—â—costal_a muscle_n and_o give_v blood_n to_o the_o mammae_fw-la where_o they_o meet_v with_o some_o branch_n of_o the_o intercostal_a artery_n to_o which_o they_o be_v inosculate_v these_o maminary_a artery_n join_v with_o the_o large_a trunk_n of_o the_o epigastrick_n 57_o 57_o also_o by_o which_o mean_v the_o impetus_fw-la of_o the_o blood_n in_o integument_n of_o the_o abdomen_fw-la be_v carry_v on_o with_o more_o force_n the_o exâ—â—â—es_n of_o the_o intercostal_n and_o lumbal_n artery_n do_v also_o inosculate_v with_o each_o other_o as_o well_o as_o with_o these_o 22_o 22._o the_o artery_n of_o the_o muscle_n of_o the_o os_fw-la humeri_fw-la and_o some_o of_o those_o of_o the_o scapulâ—_n 23_o 23._o those_o part_n of_o the_o large_a trunk_n of_o the_o artery_n of_o the_o arm_n which_o be_v liable_a to_o be_v wound_v in_o open_v the_o vena_fw-la basilica_n or_o innermost_a of_o the_o three_o vein_n in_o the_o bend_v of_o the_o cubit_n see_v fig._n 1._o of_o this_o appendix_n between_o 26._o and_o m_o where_o the_o precise_a progress_n of_o
and_o from_o the_o mixture_n of_o these_o two_o juice_n be_v compound_v a_o proper_a menstruum_fw-la by_o which_o the_o part_n of_o the_o aliment_n be_v dissolve_v and_o receive_v their_o first_o transmutation_n within_o the_o body_n in_o this_o action_n which_o be_v a_o dissolution_n of_o the_o texture_n of_o the_o alimentary_a mass_n the_o aerial_a part_n include_v in_o its_o pore_n now_o escape_v from_o their_o former_a prison_n and_o be_v rarify_v distend_v the_o whole_a body_n of_o the_o stomach_n and_o this_o i_o take_v to_o be_v the_o true_a reason_n why_o most_o man_n have_v less_o appetite_n at_o some_o distance_n of_o time_n viz._n when_o this_o intumescence_n be_v make_v than_o immediate_o after_o they_o cease_v from_o eat_v from_o the_o same_o cause_n arise_v frequent_a eructation_n great_a inflation_n from_o divers_a meat_n such_o as_o old_a pease_n cabbage_n root_n herb_n and_o other_o vegetable_n which_o very_o much_o disturb_v decay_v debilitate_a stomach_n i_o be_o apt_a to_o suspect_v the_o stomachick_n menstruum_fw-la may_v excite_v a_o intestine_a motion_n of_o the_o particle_n of_o the_o mass_n in_o digestion_n which_o yet_o i_o do_v not_o think_v fit_a to_o call_v fermentation_n fear_v so_o bold_a a_o term_n may_v mislead_v we_o into_o a_o false_a idea_n of_o a_o great_a conflict_n than_o real_o happen_v the_o intumescence_n or_o dilatation_n of_o the_o stomach_n have_v two_o effect_n first_o to_o compress_v the_o gall_n bladder_n and_o pancreas_n and_o oblige_v their_o ductus_fw-la excretorii_fw-la to_o spew_v out_o their_o content_n into_o the_o duodenum_fw-la next_o to_o retard_v the_o refluent_a blood_n and_o by_o this_o mean_n dispose_v the_o muscular_a fibres_fw-fr of_o the_o ventricle_n to_o a_o contraction_n the_o reason_n of_o this_o last_o hint_n will_v appear_v by_o what_o we_o have_v offer_v concern_v muscular_a motion_n in_o the_o introduction_n to_o our_o myotomia_fw-la reformata_fw-la for_o the_o cause_n of_o hunger_n which_o be_v a_o observable_a phaenomenon_n belong_v to_o this_o part_n i_o conceive_v it_o to_o be_v a_o irritation_n of_o the_o stomach_n arise_v from_o a_o copious_a quantity_n of_o this_o menstruum_fw-la when_o it_o want_v matter_n to_o act_v upon_o this_o conjecture_n seem_v more_o probable_a since_o it_o be_v natural_a to_o discharge_v the_o hospital_n out_o of_o the_o mouth_n which_o come_v into_o it_o at_o that_o time_n rather_o than_o suffer_v it_o to_o descend_v into_o the_o stomach_n and_o we_o may_v perpetual_o observe_v a_o deprave_a appetite_n do_v follow_v a_o vitiation_n of_o the_o saliva_n as_o in_o scorbutic_a habit_n salivation_n by_o mercurial_a medicine_n and_o such_o like_a case_n when_o the_o mass_n be_v sufficient_o prepare_v and_o reduce_v to_o a_o pultaceous_a consistence_n the_o stomach_n by_o the_o help_n of_o its_o muscular_a fibres_n contract_v itself_o and_o expel_v its_o content_n through_o the_o pylorus_n into_o the_o duodenum_fw-la where_o the_o digest_v mass_n be_v mix_v with_o the_o bile_n and_o pancreatic_a juice_n force_v to_o discharge_v itself_o here_o as_o be_v just_a now_o describe_v which_o volatilize_v subtiliate_v and_o separate_a the_o more_o fluid_a and_o fine_a part_n of_o the_o aliment_n from_o the_o more_o impure_a and_o gross_a and_o here_o it_o be_v that_o chylification_n be_v first_o make_v perfect_a now_o the_o bile_n abound_v with_o lixivial_a salt_n be_v apt_a to_o entangle_v with_o the_o grosser_n part_n of_o the_o chylaceous_a mass_n and_o its_o saline_n quality_n not_o only_o cleanse_v the_o cavity_n of_o the_o gut_n from_o the_o mucus_fw-la excrete_v by_o their_o gland_n app._n fig._n 40._o to_o smear_v their_o inmost_a coat_n and_o defend_v the_o ostia_n of_o the_o lacteal_v vessel_n from_o be_v injure_v by_o extraneous_a body_n which_o may_v happen_v to_o pass_v that_o way_n but_o stimulate_v the_o intestine_n in_o their_o peristaltic_a motion_n the_o peristaltic_a or_o wormlike_a motion_n of_o the_o gut_n be_v thus_o accelerate_a by_o the_o acrimony_n of_o the_o bile_n the_o content_n of_o the_o intestine_n be_v carry_v on_o and_o the_o thin_a and_o more_o fluid_a part_n fit_v for_o the_o pore_n of_o the_o lacteal_v vessel_n be_v absorb_v by_o they_o and_o the_o thick_a move_n on_o more_o slow_o till_o by_o the_o many_o stop_v they_o meet_v with_o in_o the_o connivent_fw-la valve_n all_o the_o chyle_n be_v at_o length_n absorb_v and_o the_o remain_v be_v mere_o excrementitious_a be_v only_o fit_a to_o be_v exclude_v by_o stool_n this_o vermicular_a motion_n of_o the_o gut_n be_v perform_v by_o the_o alternate_a contraction_n of_o their_o longitudinal_n and_o transverse_a fibres_n app._n fig._n 39.40_o which_o at_o the_o same_o time_n convey_v the_o digest_v mass_n through_o the_o intestinal_a tube_n and_o express_v the_o chyle_n into_o the_o orifice_n of_o the_o lacteal_v vessel_n adapt_v to_o receive_v it_o who_o progress_n from_o the_o intestine_n till_o it_o be_v discharge_v into_o the_o mass_n of_o blood_n next_o present_v itself_o to_o our_o consideration_n by_o the_o reciprocal_a action_n of_o these_o differ_a fibre_n and_o the_o apposition_n of_o the_o connivent_fw-la valve_n tab._n 39_o fig._n 2._o the_o chyle_n be_v force_v into_o the_o lacteal_v vessel_n tab._n ib._n fig._n 1._o and_o hence_o it_o be_v we_o can_v make_v any_o fluid_a pass_n from_o the_o cavity_n of_o the_o gut_n into_o the_o same_o vessel_n when_o the_o peristaltic_a motion_n cease_v a_o far_a use_n of_o the_o contraction_n of_o these_o muscular_a fibres_n be_v to_o accelerate_v the_o chyle_n in_o its_o progress_n till_o the_o lympha_fw-la derive_v from_o the_o artery_n of_o the_o gut_n join_v with_o it_o which_o be_v do_v before_o it_o leave_v the_o external_n surface_n of_o the_o intestine_n by_o this_o addition_n the_o chyle_n be_v dilute_v and_o assist_v in_o its_o progress_n towards_o the_o mesenterick_n gland_n in_o the_o cell_n of_o which_o it_o be_v a_o second_o time_n mix_v with_o a_o juice_n or_o lymphatic_a liquor_n there_o secrete_v from_o the_o artery_n and_o so_o carry_v on_o to_o the_o vasa_n lactea_fw-la secundi_fw-la generis_fw-la these_o vessel_n resemble_v pipe_n convey_v the_o chyle_n from_o hence_o all_o empty_n themselves_o into_o the_o common_a receptacle_n or_o cistern_n the_o happy_a discovery_n of_o which_o we_o owe_v to_o the_o observation_n of_o mons._n pecquet_n it_o be_v here_o the_o lympha_fw-la return_v from_o the_o inferior_a limb_n and_o adjacent_a part_n be_v mix_v with_o the_o chyle_n app._n fig._n 11._o which_o not_o only_o serve_v to_o dilute_v but_o promote_v its_o ascent_n through_o the_o thoracick_a dust_n fig._n ib._n to_o the_o lest_o subclavian_n vein_n fig._n ib._n where_o this_o channel_n empty_v its_o content_n into_o the_o main_a current_n of_o the_o blood_n if_o we_o consider_v in_o this_o dust_n its_o several_a division_n and_o inosculation_n resemble_v the_o vein_n of_o the_o testicle_n its_o numerous_a valve_n look_v from_o below_o upward_o its_o advantageous_a situation_n between_o the_o great_a artery_n and_o vertebra_n of_o the_o back_n together_o with_o the_o duct_n discharge_v their_o refluent_a lympha_fw-la from_o the_o lung_n and_o the_o other_o neighbour_a part_n we_o shall_v find_v all_o conduce_v to_o demonstrate_v the_o utmost_a art_n of_o nature_n use_v in_o further_a the_o steep_a and_o perpendicular_a ascent_n of_o the_o chyle_n which_o beautiful_a order_n be_v represent_v app._n fig._n 11._o and_o can_v but_o equal_o create_v in_o we_o delight_n and_o admiration_n have_v trace_v this_o animal_n juice_n to_o its_o reception_n into_o the_o blood_n with_o which_o it_o be_v at_o last_o circulate_v and_o assimulate_v we_o shall_v proceed_v to_o the_o blood_n itself_o who_o circular_a motion_n the_o various_a artifices_fw-la of_o nature_n for_o adjust_v the_o proportion_n and_o other_o subordinate_a contrivance_n the_o manner_n and_o cause_n of_o the_o contraction_n of_o the_o heart_n and_o artery_n respiration_n with_o the_o whole_a theory_n of_o the_o lympha_fw-la and_o glandular_a secretion_n in_o the_o order_n of_o nature_n follow_v the_o refluent_a blood_n in_o the_o upper_a and_o low_a trunk_n of_o the_o vena_fw-la cava_fw-la meeting_n in_o the_o right_a auricle_n of_o the_o heart_n be_v thence_o expel_v by_o its_o contraction_n into_o the_o right_a ventricle_n when_o the_o heart_n be_v in_o its_o diastole_n but_o by_o its_o systole_n or_o contraction_n it_o be_v thence_o drive_v into_o the_o arteria_fw-la pulmonaris_n from_o who_o capillary_a vessel_n it_o pass_v into_o the_o extremity_n of_o the_o vena_fw-la pulmonaris_n and_o thence_o return_v be_v discharge_v into_o the_o left_a auricle_n and_o ventricle_n of_o the_o heart_n from_o whence_o it_o be_v again_o by_o the_o systole_n drive_v into_o the_o aorta_n by_o who_o branch_n it_o be_v convey_v through_o the_o whole_a system_n of_o the_o body_n but_o when_o it_o arrive_v in_o the_o capillary_a artery_n it_o do_v not_o stop_v there_o but_o pass_v into_o the_o like_a
of_o the_o obliquus_fw-la descendens_fw-la on_o the_o lest_o side_n indent_v with_o the_o last_o mention_v serratus_fw-la h_o the_o pectoralis_fw-la in_o situ_fw-la on_o the_o left_a side_n this_o muscle_n have_v a_o broad_a semicircular_a fleshy_a beginning_n above_o from_o near_a half_n the_o inferior_a part_n of_o the_o clavicula_fw-la b_o below_o from_o the_o os_fw-la pectoris_fw-la l_o and_o all_o the_o cartilaginous_a end_n of_o the_o six_o superior_a rib_n m_o m_n and_o from_o the_o bony_a part_n of_o the_o seven_o rib_n it_o have_v sometime_o a_o distinct_a fasciculus_fw-la of_o fleshy_a fibre_n which_o i_o have_v frequent_o see_v confound_v with_o the_o obliquus_fw-la descendens_fw-la hence_o it_o pass_v transverse_o over_o the_o upper-part_n of_o the_o biceps_fw-la cubiti_fw-la where_o it_o be_v make_v into_o a_o short_a and_o broad_a strong_a tendon_n insert_v to_o the_o superior_a and_o external_n part_n of_o the_o os_fw-la humeri_fw-la above_o the_o termination_n of_o the_o deltoide_n ay_o the_o right_a pectoral_a muscle_n raise_v where_o the_o decussation_n of_o its_o fibre_n near_o its_o insertion_n be_v well_o express_v this_o cross_v of_o its_o fibres_n be_v a_o contrivance_n in_o nature_n to_o render_v its_o action_n more_o vigorous_a the_o fibre_n of_o its_o upper-part_n descend_v to_o the_o lower-part_n of_o its_o implantation_n to_o the_o os_fw-la humeri_fw-la and_o those_o of_o its_o lower-part_n ascend_v to_o the_o superior_a cross_v each_o other_o with_o acute_a angle_n this_o muscle_n be_v call_v adductor_n humeri_fw-la when_o it_o act_n it_o move_v the_o arm_n various_o according_a to_o the_o operation_n of_o its_o several_a series_n of_o fibres_n k_o the_o serratus_fw-la minor_n anticus_fw-la raise_v from_o its_o implantation_n at_o the_o bony_a part_n of_o the_o second_o third_z four_o and_o five_o rib_n and_o leave_v at_o its_o origin_n at_o the_o processus_n carocoide_v scapulae_fw-la l_o the_o os_fw-la pectoris_fw-la or_o sternum_fw-la m_o m_o the_o cartilaginous_a end_n of_o the_o superior_a rib_n connex_v to_o the_o sternum_fw-la n_o n_o the_o deltoide_n vide_fw-la tab._n 66._o xx._n o_o o_o the_o superior_a part_n of_o the_o recti_fw-la abdominis_fw-la vide_fw-la tab._n 32_o fig._n 1._o n_o o_o etc._n etc._n p_o part_v of_o the_o coracobrachialis_fw-la vide_fw-la tab._n 65._o f._n q_o part_v of_o the_o biceps_fw-la cubiti_fw-la tab._n ib._n 1._o the_o twenty-first_a table_n show_v the_o sternum_n raise_v and_o the_o principal_a organ_n contain_v in_o the_o thorax_n partly_o in_o view_n a_o the_o inner-face_n of_o the_o sternum_n or_o os_fw-la pectoris_fw-la b_o b_o the_o cartilage_n of_o the_o true_a rib_n cut_v from_o the_o bony_a extremity_n of_o the_o rib_n and_o leave_v at_o their_o connexion_n to_o the_o sternum_fw-la upon_o these_o cartilage_n be_v place_v the_o musculi_fw-la triangulares_n which_o muscle_n arise_v from_o the_o inferior_a and_o internal_a part_n of_o the_o sternum_n and_o after_o a_o oblique_a progress_n be_v insert_v to_o the_o bony_a end_n of_o the_o four_o five_o six_z and_o sometime_o seven_o and_o eight_o rib_n these_o triangular_a muscle_n scarce_o appear_v in_o macilent_a subject_n as_o be_v express_v in_o this_o figure_n c_o the_o mediastinum_fw-la free_v from_o the_o os_fw-la pectoris_fw-la where_o in_o humane_a body_n it_o appear_v double_a be_v a_o continuation_n of_o the_o pleura_fw-la from_o both_o side_n the_o internal_a part_n of_o the_o thorax_n whence_o it_o descend_v and_o firm_o cleave_v to_o the_o pericardium_n divide_v the_o thorax_n into_o two_o cavity_n and_o the_o right_a lobe_n of_o the_o lung_n from_o the_o left_a in_o this_o progress_n of_o the_o mediastinum_fw-la it_o part_v with_o one_o of_o its_o laminae_fw-la to_o cover_v the_o large_a blood-vessel_n within_o the_o thorax_n a_o triangular_a interstice_n be_v frame_v immediate_o under_o the_o sternum_fw-la at_o the_o approach_n of_o the_o pleura_fw-la from_o each_o side_n as_o it_o descend_v to_o compose_v the_o mediastinum_fw-la nor_o be_v this_o interstice_n a_o empty_a space_n as_o it_o be_v common_o suppose_v but_o be_v interweave_v with_o various_a order_n of_o fibres_n frame_v loculi_fw-la or_o little_a cell_n real_a columbus_n lib._n xi_o cap._n iii._o proposes_n the_o let_v out_o of_o pus_fw-la collect_v in_o this_o interstice_n by_o perforate_n the_o sternum_fw-la as_o the_o forepart_n of_o the_o mediastinum_fw-la plain_o appear_v a_o continuation_n of_o the_o pleuraâ—_n â—_z so_o its_o backpart_n be_v evident_o a_o continuation_n of_o the_o same_o membrane_n as_o it_o advance_v towards_o the_o vertebra_n of_o the_o back_n in_o dissect_v a_o morbid_v body_n i_o find_v the_o right_a side_n of_o the_o cavity_n of_o the_o thorax_n so_o extend_v with_o a_o serous_a humour_n as_o its_o external_n appearance_n especial_o at_o the_o cartilaginous_a end_n of_o the_o true_a rib_n be_v prominent_a nor_o will_v the_o least_o portion_n of_o the_o lung_n on_o the_o same_o side_n swim_v in_o common_a water_n but_o sink_v to_o the_o bottom_n of_o the_o vessel_n in_o this_o subject_n i_o can_v not_o find_v any_o part_n of_o the_o hydropic_a or_o serous_a humour_n in_o the_o other_o side_n of_o the_o thorax_n but_o the_o lung_n on_o that_o side_n in_o no_o very_a ill_a state_n by_o this_o we_o may_v be_v assure_v that_o the_o mediastinum_fw-la adequate_o divide_v the_o right_a side_n of_o the_o thorax_n from_o the_o left_a the_o mediastinum_fw-la also_o support_v the_o pericardium_n leave_v its_o flaccidity_n impede_fw-la the_o systole_n of_o the_o heart_n and_o sustain_v the_o trunk_n of_o the_o nerve_n of_o the_o par_fw-fr vagum_fw-la in_o their_o progress_n through_o the_o thorax_n the_o diaphragm_n be_v also_o say_v to_o be_v suspend_v by_o the_o mediastinum_fw-la leave_v the_o liver_n to_o who_o lowerside_n it_o be_v connex_v shall_v become_v insupportable_a the_o mediastinum_fw-la receive_v artery_n from_o the_o mammary_n and_o intercostal_a branch_n it_o have_v two_o large_a vein_n which_o discharge_v their_o blood_n into_o the_o subclavian_n and_o neighbour_a trunk_n its_o nerve_n be_v say_v to_o spring_n from_o the_o eight_o pair_n the_o lymphducts_a of_o the_o mediastinum_fw-la pass_v towards_o the_o thymus_n d_o d_o the_o pericardium_n or_o capsula_fw-la cordis_n open_v and_o pin_v up_o the_o pericardium_n arise_v from_o the_o large_a vessel_n at_o the_o basis_n of_o the_o heart_n and_o seem_v to_o be_v compose_v of_o a_o continuation_n of_o the_o pleura_fw-la or_o mediastinum_fw-la it_o adhere_v to_o the_o diaphragm_n below_o and_o lateral_o to_o the_o mediastinum_fw-la it_o have_v blood-vessel_n from_o the_o diaphragm_n and_o mammary-vessel_n according_a to_o the_o accurate_a ruysch_n in_o his_o late_o publish_v epistle_n the_o capillary_a extremity_n of_o these_o blood-vessel_n be_v very_o numerous_a as_o will_v appear_v when_o inject_v with_o mercury_n there_o be_v divers_a lymphducts_a on_o the_o pericardium_n which_o convey_v the_o lympha_fw-la to_o the_o thoracick-duct_a the_o gland_n which_o be_v in_o the_o pericardium_n and_o at_o the_o basis_n of_o the_o heart_n which_o separate_v that_o humour_n employ_v in_o moisten_v the_o inside_n of_o that_o membrane_n and_o surface_n of_o the_o heart_n be_v not_o to_o be_v discover_v by_o the_o naked_a eye_n in_o ordinary_a dissection_n no_o more_o than_o those_o on_o the_o inside_n of_o the_o peritonaeum_fw-la and_o surface_n of_o the_o intestine_n which_o afford_v a_o humour_n to_o lubricate_v those_o part_n but_o when_o either_o of_o these_o part_n be_v disease_a so_o that_o those_o gland_n be_v affect_v their_o existence_n then_o be_v demonstrable_a as_o appear_v in_o the_o pericardium_n of_o a_o infant_n i_o late_o dissect_v where_o the_o neighbour_a part_n and_o pericardium_n its_o self_n be_v apostumate_v in_o the_o pericardium_n of_o this_o subject_a we_o find_v two_o or_o three_o ounce_n of_o purulent_a matter_n in_o place_n of_o the_o serous_a humour_n and_o the_o external_n membrane_n of_o the_o heart_n so_o loosen_a as_o its_o surface_n appear_v villous_a nor_o do_v any_o fat_a appear_v on_o the_o basis_n of_o the_o heart_n in_o a_o adult_n person_n who_o die_v sudden_o i_o find_v the_o pericardium_n somewhat_o thicken_v and_o no_o humour_n contain_v in_o it_o but_o in_o two_o or_o three_o place_n cleave_v to_o the_o heart_n especial_o near_o its_o basis_n and_o the_o heart_n itself_o entire_o cover_v with_o fat_a the_o use_v of_o the_o pericardium_n be_v to_o defend_v the_o heart_n in_o its_o systole_n from_o the_o neighbour_a part_n and_o to_o contain_v a_o humour_n to_o moisten_v the_o external_n surface_n of_o the_o heart_n e_o the_o heart_n lie_v within_o the_o pericardium_n f_o f_o part_n of_o the_o lung_n on_o both_o side_n the_o thorax_n in_o situ_fw-la g_o the_o thymus_n in_o situ_fw-la the_o magnitude_n of_o the_o thymas_n vary_v according_a to_o the_o age_n of_o the_o body_n in_o a_o faetus_fw-la two_o month_n after_o conception_n it_o be_v large_a in_o proportion_n to_o the_o bulk_n of_o the_o
scutiformal_a cartilege_n ay_o o_o the_o forepart_n of_o the_o cartilago_n annularis_fw-la make_v bare_a fig._n 6._o the_o backpart_n of_o the_o larynx_n and_o its_o muscle_n place_v on_o it_o express_v very_o confuse_o which_o together_o with_o the_o former_a figure_n be_v erroneous_o describe_v by_o bidloo_n f_o f_o g_o k_n l_o m_o p_o q_o shall_v express_v the_o backpart_n of_o the_o cartilago_n annularis_fw-la cover_v with_o the_o musculi_fw-la cricoarytenoidei_fw-la postici_fw-la as_o it_o be_v represent_v in_o our_o appendix_n n_o n_o the_o musculus_fw-la arytenoideus_fw-la o_o the_o internal_a and_o concave_a part_n of_o the_o epiglottis_fw-la as_o it_o appear_v when_o pin_v up_o r_o the_o posterior_n edge_n of_o the_o scutiformal_a cartilege_n of_o the_o right_a side_n s_o the_o membranous_a part_n of_o the_o windpipe_n next_o the_o gula._n fig._n 7._o the_o os_fw-la hyoide_n or_o bone_n of_o the_o tongue_n together_o with_o the_o forepart_n of_o the_o the_o cartilage_n which_o compose_v the_o larynx_n and_o part_n of_o the_o aspera_fw-la arteria_fw-la a_o the_o external_n and_o convex_a part_n of_o the_o cartilago_n scutiformis_fw-la b_o the_o internal_a and_o concave_a part_n of_o the_o os_fw-mi hyoide_n which_o part_n of_o it_o necessary_o come_v in_o view_n in_o this_o position_n c_o the_o annular_a cartilege_n d_o the_o epiglottis_fw-la express_v with_o the_o internal_a concave_a part_n foreward_n as_o be_v true_o exhibit_v in_o the_o follow_a figure_n which_o on_o the_o contrary_a shall_v have_v be_v here_o represent_v with_o its_o external_n and_o convext_a part_n as_o in_o fig._n 5._o f._n e_o part_v of_o the_o aspera_fw-la arteria_fw-la or_o windpipe_n f_o f_o the_o glandulae_fw-la thyroideae_n from_o what_o i_o have_v hitherto_o observe_v these_o gland_n seem_v to_o be_v of_o the_o same_o office_n with_o the_o thymus_n nor_o do_v their_o colour_n or_o compactness_n distinguish_v they_o from_o the_o thymus_n if_o we_o consider_v that_o by_o their_o situation_n on_o the_o windpipe_n they_o be_v perpetual_o in_o motion_n by_o which_o the_o motion_n of_o the_o blood_n be_v very_o much_o hasten_v through_o they_o and_o the_o blood-vessel_n consequent_o enlarge_v whence_o their_o colour_n and_o compactness_n do_v arise_v g_o g_o two_o long_a process_n of_o the_o thyroide_v cartilege_n or_o scutiformis_fw-la tie_v to_o the_o extremity_n of_o the_o os_fw-mi hyoide_n fig._n 8._o the_o os_fw-la hyoide_n and_o back_o part_n of_o the_o larâ—yx_n a_o the_o external_n convext_a part_n of_o the_o os_fw-mi hyoide_n this_o bone_n of_o the_o tongue_n appear_v in_o this_o precede_a figure_n to_o be_v compose_v of_o three_o bone_n the_o middle-bone_n a_o be_v join_v to_o one_o of_o the_o extremity_n of_o the_o two_o side-bone_n by_o a_o cartilaginous_a interposition_n call_v sychondrosis_n the_o two_o other_o extremity_n of_o these_o side-bone_n be_v tie_v to_o the_o extremity_n of_o the_o two_o long_a process_n of_o the_o thyroide_v cartilege_n g_o g_o fig._n 7._o by_o a_o ligament_n which_o connexion_n be_v call_v syndesinusis_n b_o the_o internal_a concave-part_n of_o the_o epiglottis_fw-la next_o the_o glottis_fw-la c_o c_o the_o arytenoidal_a cartilage_n cover_v with_o the_o glottis_fw-la or_o internal_a membrane_n of_o the_o oesophagus_n d_o the_o cricoidal_a cartilege_n cover_v with_o the_o internal_a membrane_n of_o the_o oesophagus_n which_o compose_v the_o glottis_fw-la e_o e_o the_o two_o side_n or_o backpart_n of_o the_o thyroidal_a cartilege_n whence_o the_o musculus_fw-la oesophageus_n do_v arise_v which_o muscle_n in_o a_o semicircular_a manner_n invest_n the_o backpart_n of_o the_o oesophagus_n f_o f_o the_o backpart_n of_o the_o thyroidal_a gland_n g_o the_o posterior-part_n of_o the_o windpipe_n where_o it_o be_v membranous_a and_o receive_v the_o forepart_n of_o the_o gula_fw-la in_o its_o way_n to_o the_o stomach_n have_v view_v the_o fore_n and_o backpart_n of_o the_o whole_a larynx_n we_o come_v in_o the_o next_o place_n to_o examine_v those_o cartilage_n which_o compose_v it_o when_o separate_v from_o each_o other_o 1_o the_o external_n convext-part_n of_o the_o thyroidal_a cartilege_n 2_o the_o internal_a concave-part_n of_o the_o same_o cartilege_n in_o these_o two_o figure_n the_o two_o kind_n of_o process_n of_o the_o thyroidal_a cartilege_n be_v remarkable_a the_o two_o superior_a or_o long_a process_n be_v join_v with_o the_o extremity_n of_o the_o os_fw-mi hyoide_n g_z g_z fig._n 7._o the_o two_o inferior_a be_v fasten_v to_o the_o cricoidal_a cartilege_n lateral_o 3_o 4_o the_o cricoidal_a cartilege_n 3_o the_o forepart_n 4_o the_o backpart_n of_o this_o cartilege_n that_o figure_n of_o the_o right_a hand_n towards_o the_o figure_n of_o the_o lung_n and_o heart_n express_v the_o external_n inferior_n and_o backpart_n of_o the_o annular_a cartilege_n that_o of_o the_o left_a hand_n represent_v the_o inferior_a internal_a and_o forepart_n of_o the_o annular_a cartilege_n 5_o 6_o 5_o 6_o two_o different_a view_n of_o the_o arytenoidal_a cartilage_n which_o be_v articulate_v to_o the_o superior_a part_n of_o the_o cricoidal_a cartilege_n the_o twenty-fifth_a table_n fig._n 1._o a_o portion_n of_o the_o windpipe_n cut_v off_o a_o b_o b_o the_o external_n membrane_n of_o the_o windpipe_n raise_v and_o pin_v out_o fig._n 2._o the_o muscular_a fasciculi_fw-la lie_v between_o the_o cartilage_n of_o the_o windpipe_n fig._n 3._o the_o glandulous_a membrane_n of_o the_o windpipe_n where_o divers_a cluster_n of_o glandule_n of_o a_o different_a magnitude_n be_v express_v fig._n 4._o the_o internal_a membrane_n of_o the_o windpipe_n compose_v of_o fibres_n extend_v according_a to_o its_o length_n between_o this_o internal_a and_o longitudinal_a order_n of_o fibres_n and_o the_o cartilage_n be_v place_v another_o transverse_a order_n which_o pass_v circular_o according_a to_o the_o disposition_n of_o the_o cartilage_n these_o internal_a transverse_a fleshy_a fibre_n be_v more_o numerous_a than_o the_o superior_a longitudinal_n one_o both_o these_o order_n of_o fibres_n be_v express_v in_o this_o figure_n this_o disposition_n of_o the_o fibre_n of_o the_o internal_a membrane_n of_o the_o windpipe_n be_v very_o conspicuous_a in_o the_o wind-pipe_n of_o most_o quadrupedes_fw-la especial_o in_o the_o large_a sort_n as_o ox_n horse_n etc._n etc._n but_o chief_o consider_v the_o bulk_n of_o the_o animal_n in_o a_o hog_n in_o who_o windpipe_n this_o membrane_n appear_v compose_v of_o strong_a fleshy_a fibre_n whence_o a_o account_n may_v not_o improbable_o be_v suggest_v why_o that_o animal_n be_v capable_a of_o alter_v the_o tone_n of_o the_o voice_n from_o a_o base_a to_o a_o treble_a for_o when_o these_o fibres_fw-fr contract_n the_o channel_n of_o the_o windpipe_n be_v very_o much_o straighten_a as_o well_o in_o its_o diameter_n as_o length_n whence_o the_o tone_n be_v render_v more_o acute_a this_o constructure_n of_o the_o inward_a membrane_n of_o the_o windpipe_n be_v continue_v to_o the_o beginning_n of_o the_o bronchia_fw-la where_o these_o fleshy_a fibres_n lessen_v and_o bear_v a_o proportion_n to_o the_o cavity_n of_o the_o bronchia_fw-la and_o be_v at_o length_n so_o thin_v as_o to_o frame_n transparent_a membrane_n which_o help_v to_o compose_v the_o vesiculae_fw-la of_o the_o lung_n fig._n 5._o part_v of_o one_o of_o the_o lobe_n of_o the_o lung_n with_o the_o bronchia_fw-la inject_v with_o wax_n to_o exhibit_v the_o lobuli_n a_o part_v of_o the_o bronchial_a tube_n cut_v off_o b_o b_o the_o lobuli_n or_o distinct_a cluster_n of_o the_o vesiculae_fw-la partly_o compose_v of_o the_o extremity_n of_o the_o bronchia_fw-la and_o partly_o of_o the_o blood-vessel_n of_o the_o lung_n these_o lobuli_n be_v not_o always_o of_o the_o same_o figure_n some_o be_v round_o other_o oval_a some_o oblong_n and_o other_o various_o figure_v c_o c_o the_o interstitia_fw-la of_o the_o lobuli_n which_o be_v invest_v with_o the_o internal_a lamina_fw-la of_o the_o proper_a membrane_n of_o the_o lung_n here_o pin_v out_o on_o which_o the_o blood-vessel_n be_v very_o conspicuous_a these_o interstitia_fw-la or_o space_n between_o the_o lobuli_n appear_v in_o the_o lung_n of_o a_o foetus_fw-la very_o plain_a and_o do_v not_o communicate_v with_o the_o vesiculae_fw-la of_o the_o lobuli_n but_o be_v distinguish_v from_o they_o as_o do_v appear_v by_o blow_v into_o these_o interstitia_fw-la which_o may_v be_v do_v with_o a_o blow-pipe_n after_o wound_v the_o external_n membrane_n of_o the_o lung_n and_o you_o will_v find_v the_o interstitia_fw-la of_o the_o lobuli_n very_o much_o distend_v with_o wind_n and_o the_o vesiculae_fw-la not_o at_o all_o inflate_v nor_o on_o the_o contrary_a will_v these_o interstitia_fw-la be_v any_o way_n inflate_v by_o blow_v into_o the_o bronchia_fw-la though_o the_o vesiculae_fw-la and_o lobuli_fw-la be_v very_o much_o extend_v d_o d_o the_o branch_n of_o the_o pulmonick_a vein_n and_o artery_n on_o each_o side_n the_o bronchia_fw-la see_v fig._n 10._o a_o b._n fig._n 6._o part_v of_o the_o bronchia_fw-la with_o divers_a
part_n proper_a for_o its_o further_a elaboration_n respiration_n or_o breathe_v be_v a_o double_a action_n i._n e._n inspiration_n or_o receive_v of_o air_n into_o the_o lung_n and_o expiration_n or_o expel_v it_o again_o the_o whole_a be_v do_v by_o mean_n of_o widen_v and_o straighten_v the_o cavity_n of_o the_o thorax_n in_o which_o the_o lung_n be_v contain_v how_o the_o cavity_n of_o the_o thorax_n may_v be_v enlarge_v and_o contract_v we_o may_v easy_o conceive_v if_o we_o consider_v the_o order_n of_o its_o bony_n parietes_fw-la tab._n 27_o and_o 28._o and_o observe_v the_o oblique_a descend_v position_n of_o the_o rib_n from_o the_o vertebra_n of_o the_o back_n with_o their_o cartilaginous_a connection_n to_o the_o os_fw-la pectoris_fw-la and_o the_o position_n and_o action_n of_o the_o diaphragm_n as_o be_v explain_v tab._n 52._o whence_o it_o appear_v when_o the_o rib_n be_v draw_v up_o and_o the_o superior_a convex_a surface_n of_o the_o diaphragm_n depress_v towards_o a_o plain_a the_o include_v space_n must_v necessary_o be_v enlarge_v and_o on_o the_o contrary_a very_o much_o straighten_a when_o the_o rib_n be_v draw_v down_o and_o the_o upper_a surface_n of_o the_o diaphragm_n convex_v towards_o the_o lung_n as_o it_o be_v represent_v in_o the_o last_o mention_v table_n the_o elevation_n and_o depression_n of_o the_o rib_n be_v perform_v by_o the_o proper_a and_o common_a muscle_n of_o the_o thorax_n the_o first_o have_v their_o rise_n and_o termination_n confine_v to_o the_o part_n compose_v its_o parietes_fw-la the_o other_o notwithstanding_o their_o relation_n to_o other_o part_n yet_o chief_o respect_v this_o of_o the_o common_a muscle_n some_o be_v principal_a immediate_o move_v this_o together_o with_o those_o part_n from_o which_o they_o be_v derive_v other_o be_v auxiliary_a which_o by_o move_v the_o contiguous_a body_n contribute_v to_o the_o better_a perform_v the_o grand_a motion_n thus_o the_o elevation_n of_o the_o shoulderblade_n be_v require_v in_o violent_a respiration_n without_o which_o the_o musculi_fw-la serrati_fw-la tab._n 20._o which_o spring_n from_o the_o scapulae_fw-la tab._n 29._o v._o w._n can_v not_o act_n hence_o it_o happen_v that_o respiration_n be_v interrupt_v when_o the_o arm_n be_v in_o action_n by_o reason_n the_o scapulae_fw-la at_o that_o time_n engage_v all_o their_o muscle_n especial_o the_o serrati_fw-la t._n 20._o to_o render_v they_o stable_a and_o the_o extension_n of_o the_o vertebra_n of_o the_o neck_n become_v necessary_a to_o the_o end_n the_o musculi_fw-la scaleni_n tab._n 18._o b_o b._n may_v raise_v the_o upper_a rib_n the_o proper_a muscle_n of_o the_o thorax_n be_v the_o intercostale_n externi_fw-la and_o interni_fw-la tab._n 26._o fig._n 1._o the_o triangulares_n tab._n and_o fig._n ead_n the_o serrati_n superiores_fw-la and_o inferiores_fw-la postici_fw-la tab._n 28._o the_o principal_a common_a muscle_n be_v the_o scaleni_n tab._n 18._o the_o subclavii_fw-la tab._n 20._o the_o serrati_fw-la majores_fw-la &_o minores_fw-la antici_n tab._n ead_a and_o the_o sacrolumbale_n tab._n 29._o the_o auxiliary_a muscle_n be_v such_o as_o raise_v the_o scapulae_fw-la and_o draw_v they_o backward_o and_o those_o which_o extend_v the_o whole_a spine_n the_o cavity_n of_o the_o thorax_n be_v dilate_v in_o the_o manner_n above_o mention_v the_o ambient_fw-la air_n necessary_o rush_n through_o the_o aspera_fw-la arteria_fw-la and_o bronchia_fw-la into_o the_o vesiculae_fw-la of_o the_o lung_n whereby_o their_o whole_a substance_n become_v distend_v and_o this_o we_o call_v inspiration_n in_o expiration_n the_o air_n contain_v in_o the_o vesiculae_fw-la of_o the_o lung_n be_v exclude_v in_o this_o action_n the_o lung_n be_v not_o mere_o passive_a as_o in_o the_o former_a but_o the_o elasticity_n of_o the_o ligament_n of_o their_o bronchia_fw-la draw_v their_o small_a cartilage_n over_o each_o other_o and_o conduce_v to_o the_o expulsion_n of_o the_o air_n contain_v in_o their_o vesiculae_fw-la this_o alternate_a diastole_n and_o systole_n of_o the_o lung_n and_o thorax_n bear_v a_o analogy_n to_o a_o pair_n of_o bellows_o who_o two_o board_n be_v draw_v from_o each_o other_o the_o ambient_fw-la air_n necessary_o rush_n in_o between_o they_o and_o fill_v the_o internal_a space_n enlarge_v by_o the_o deduction_n of_o their_o side_n which_o air_n be_v again_o expel_v from_o thence_o by_o approach_v they_o towards_o each_o other_o the_o inducement_n the_o author_n of_o nature_n have_v to_o frame_n this_o pulmonary_a organ_n be_v many_o by_o this_o the_o aerial_a particle_n pass_v to_o the_o mass_n of_o blood_n which_o rarify_v subtilise_v and_o render_v it_o fit_a for_o those_o elaboration_n it_o afterward_o undergo_v by_o these_o the_o tenacious_a serum_fw-la of_o the_o blood_n be_v attenuate_v and_o the_o whole_a mass_n render_v fit_a for_o motion_n the_o effect_n of_o which_o be_v evident_a in_o those_o rheumatic_a asthma_n and_o other_o case_n which_o oblige_v some_o to_o leave_v this_o town_n for_o a_o clear_a air._n the_o lung_n be_v the_o intermediate_n passage_n between_o the_o two_o ventricles_n of_o the_o heart_n whereby_o the_o whole_a mass_n of_o blood_n pass_v through_o their_o large_a blood-vessel_n in_o a_o equal_a rapidity_n and_o quantity_n with_o that_o of_o all_o other_o part_n of_o the_o body_n beside_o and_o do_v by_o this_o mean_n discharge_v the_o blood_n of_o a_o great_a quantity_n of_o its_o serum_fw-la by_o halitus_fw-la in_o expiration_n wherefore_o the_o accurate_a dr._n tyson_n reckon_v they_o among_o the_o number_n of_o gland_n this_o alternate_a action_n in_o which_o respiration_n consist_v be_v necessary_a to_o the_o end_v the_o blood_n may_v pass_v the_o lung_n who_o vesiculae_fw-la if_o they_o be_v constant_o distend_v by_o the_o inspire_a air_n the_o extremity_n of_o the_o pulmonick_a blood-vessel_n will_v be_v compress_v and_o on_o the_o contrary_a if_o these_o vesiculae_fw-la be_v collapse_v as_o after_o expiration_n their_o blood-vessel_n will_v be_v consequent_o corrugate_v but_o by_o this_o vicissitude_n they_o become_v permeable_a and_o the_o blood_n easy_o pass_v their_o extremity_n we_o have_v trace_v the_o aliment_n from_o its_o first_o reception_n till_o it_o be_v elaborate_v into_o blood_n and_o pursue_v in_o its_o motion_n and_o circulation_n through_o its_o several_a channel_n we_o ought_v next_o to_o take_v a_o view_n of_o the_o several_a liquor_n or_o fluid_n separate_v from_o it_o in_o its_o tour._n all_o animal_n juice_n except_o the_o chyle_n be_v separate_v from_o the_o arterial_a blood_n which_o common_a material_a in_o its_o percolation_n in_o the_o brain_n and_o nerve_n yield_v the_o content_n of_o their_o fibre_n in_o the_o gland_n of_o the_o mouth_n and_o throat_n the_o saliva_n in_o the_o mammae_fw-la the_o milk_n in_o the_o kidney_n the_o urine_n in_o the_o testes_fw-la sperm_n not_o to_o name_v the_o sweat_n mucilage_n of_o the_o joint_n etc._n etc._n and_o through_o the_o universal_a body_n a_o copious_a quantity_n of_o lympha_fw-la which_o be_v not_o apply_v to_o any_o distinct_a use_v in_o the_o animal_n oeconomy_n but_o be_v all_o discharge_v into_o the_o great_a cystern_a or_o receptacle_n of_o the_o chyle_n and_o subclavian_n vein_n and_o so_o refund_v into_o the_o refluent_a blood_n the_o doctrine_n of_o secretion_n be_v the_o last_o and_o only_o remain_v part_n of_o those_o natural_a function_n which_o be_v direct_v to_o the_o preservation_n and_o subsist_v of_o the_o individual_a for_o the_o nature_n and_o property_n of_o these_o liquor_n their_o use_n and_o office_n and_o the_o peculiar_a structure_n adapt_v for_o the_o percolation_n of_o one_o and_o exclude_v the_o rest_n we_o must_v remit_v the_o reader_n to_o the_o description_n of_o the_o organ_n themselves_o content_v ourselves_o here_o with_o the_o theory_n of_o the_o origin_n of_o the_o lympha_fw-la and_o secretion_n in_o general_n the_o knowledge_n of_o this_o animal-liquor_n call_v lympha_fw-la and_o the_o duct_n which_o convey_v it_o be_v owe_v to_o the_o industry_n and_o search_n of_o this_o present_a age._n but_o whether_o rudbeck_n bartholine_n or_o our_o countryman_n dr._n jolive_n ought_v to_o carry_v the_o honour_n of_o the_o discovery_n i_o shall_v not_o pretend_v to_o decide_v but_o the_o rise_v course_n and_o other_o particular_a circumstance_n needful_a to_o inform_v we_o of_o their_o use_n and_o the_o design_n of_o nature_n in_o the_o fabrication_n of_o these_o duct_n have_v not_o be_v hitherto_o at_o least_o full_o demonstrate_v some_o have_v pretend_v to_o derive_v these_o duct_n from_o the_o nerve_n other_o from_o the_o membrane_n or_o tendinous_a part_n of_o the_o muscle_n but_o these_o be_v impertinency_n scarce_o worth_a a_o serious_a refutation_n the_o diligent_a melpighius_fw-la in_o his_o epistle_n to_o the_o royal-socÃety_a be_v follicitous_a in_o inquire_v whether_o they_o be_v not_o excretory-ducts_a to_o export_v the_o juice_n secrete_v in_o the_o conglobate_a gland_n since_o there_o be_v none_o of_o these_o gland_n so_o inconsiderable_a to_o be_v
lobuli_n of_o one_o of_o the_o lobe_n of_o the_o lung_n dr._n willis_n who_o have_v give_v a_o figure_n of_o these_o lobuli_n after_o the_o manner_n as_o they_o be_v here_o represent_v say_v that_o by_o fill_v the_o bronchia_fw-la with_o a_o liquid_a these_o lobuli_n may_v be_v separate_v from_o each_o other_o i_o must_v confess_v i_o have_v more_o than_o once_o attempt_v to_o divide_v these_o lobuli_n but_o can_v not_o be_v satisfy_v of_o their_o appearance_n like_o this_o figure_n the_o external_n surface_n of_o the_o lobuli_n in_o the_o foetus_fw-la appear_v angular_a and_o be_v in_o a_o cubical_a manner_n place_v by_o each_o other_o a_o the_o inside_n of_o the_o bronchia_fw-la where_o the_o holes_n for_o divers_a of_o its_o ramification_n which_o pass_v out_o of_o it_o and_o the_o straight_a progress_n of_o the_o fibre_n of_o its_o internal_a membrane_n do_v appear_v b_o b_o the_o bronchia_fw-la divide_v into_o lesser_a branch_n to_o which_o the_o lobuli_n be_v fasten_v c_o c_o the_o lobuli_n which_o may_v be_v more_o or_o less_o divide_v and_o be_v compose_v of_o the_o vesiculae_fw-la the_o vesiculae_fw-la as_o above_o hint_v be_v frame_v by_o the_o extremity_n of_o the_o bronchia_fw-la and_o the_o pulmonick_a blood-vessel_n n._n b._n the_o lobuli_n in_o this_o figure_n may_v be_v observe_v to_o have_v the_o extremity_n of_o the_o blood-vessel_n branch_v on_o them_o each_o vesicula_fw-la also_o have_v one_o of_o the_o extremity_n of_o the_o pulmonick_a vein_n and_o artery_n branch_v on_o it_o and_o without_o doubt_n conformable_a to_o the_o extremity_n of_o the_o blood-vessel_n of_o other_o part_n those_o vessel_n also_o be_v continue_v channel_n on_o the_o vesiculae_fw-la of_o the_o lung_n here_o the_o art_n of_o nature_n be_v very_o extraordinary_a in_o frame_v the_o extremity_n of_o these_o blood-vessel_n of_o the_o lung_n so_o very_o small_a and_o confine_v their_o vast_a number_n in_o so_o narrow_a a_o compass_n as_o the_o body_n of_o the_o lung_n for_o these_o pulmonick_a blood-vessel_n correspond_v to_o those_o of_o the_o whole_a field_n of_o the_o body_n in_o constant_o '_o discharge_v the_o blood_n through_o they_o as_o well_o as_o through_o the_o heart_n whilst_o life_n with_o perfect_a health_n be_v maintain_v and_o notwithstanding_o one_o half_a of_o the_o lung_n be_v complete_o vitiate_a as_o i_o have_v more_o than_o once_o find_v in_o dissect_v morbid_v body_n yet_o nevertheless_o the_o circulation_n of_o the_o blood_n have_v be_v still_o carry_v on_o for_o some_o time_n though_o in_o this_o case_n respiration_n must_v not_o only_o be_v very_o quick_a and_o attend_v with_o no_o small_a difficulty_n on_o frequent_a occasion_n but_o the_o heart_n must_v also_o labour_v very_o much_o to_o drive_v the_o blood_n on_o fig._n 7._o a_o portion_n of_o the_o external_n surface_n of_o the_o lung_n cut_v from_o they_o when_o dry_v after_o inflation_n a_o a_o the_o external_n membrane_n b_o b_o the_o lamellae_n of_o the_o external_n membrane_n which_o pass_v between_o the_o vesiculae_fw-la and_o compose_v the_o lobuli_n between_o which_o the_o interstitia_fw-la necessary_o result_v c_o d_o the_o lobuli_n compose_v of_o the_o vesiculae_fw-la which_o be_v here_o well_o express_v fig._n 8._o the_o aspera_fw-la arteria_fw-la or_o windpipe_n together_o with_o the_o bronchus_n or_o ramification_n of_o it_o free_v from_o the_o lung_n a_o a_o the_o forepart_n of_o the_o windpipe_n b_o b_o the_o division_n of_o the_o windpipe_n into_o two_o branch_n and_o afterward_o into_o more_o call_v bronchus_n c_o c_o the_o large_a branch_n of_o the_o bronchus_n d_o d_o the_o lesser_a from_o who_o extremity_n the_o vesiculae_fw-la be_v pull_v off_o e_o e_o the_o semicircular_a cartilage_n of_o the_o windpipe_n f_o g_o h_n the_o cartilage_n of_o the_o bronchia_fw-la of_o various_a figure_n and_o size_n some_o of_o which_o be_v circular_a f_o f_o other_o semicircular_a triangular_a g_z quadrangular_a etc._n etc._n h._n these_o cartilage_n of_o the_o bronchus_n be_v not_o connex_v to_o each_o other_o like_o those_o of_o the_o windpipe_n itself_o but_o the_o lower-part_n of_o the_o superior_a receive_v the_o upper-part_n of_o the_o inferior_a not_o unlike_o the_o crustaceous_a cover_n of_o the_o locust_n or_o tail_n of_o a_o lobster_n so_o that_o in_o inspiration_n the_o bronchus_n may_v be_v coextend_v with_o the_o tumified_a lung_n for_o these_o ligament_n between_o the_o cartilage_n of_o the_o bronchus_n have_v a_o elastic_a power_n of_o restitution_n not_o unlike_o that_o strong_a ligament_n place_v on_o the_o spines_n of_o the_o vertebra_n of_o the_o neck_n of_o quadrupedes_fw-la by_o which_o mean_v the_o superior_a part_n of_o the_o low_a cartilage_n of_o the_o bronchus_n be_v draw_v under_o the_o inferior_a part_n of_o the_o upper_a in_o expiration_n but_o in_o inspiration_n the_o ligament_n be_v extend_v and_o the_o inferior_a cartilage_n be_v with-drawn_a from_o under_o the_o superior_a and_o to_o this_o action_n in_o expiration_n the_o longitudinal_n fibres_fw-fr of_o the_o windpipe_n which_o pass_v into_o the_o bronchus_n do_v concur_v to_o contract_v they_o in_o inspiration_n the_o weight_n of_o the_o superincumbent_a air_n be_v sufficient_a to_o extend_v the_o bronchus_n and_o consequent_o the_o lung_n when_o the_o cavity_n of_o the_o thorax_n be_v widen_v by_o the_o muscle_n which_o draw_v the_o bib_n up_o fig._n 9_o a_o small_a portion_n of_o the_o lung_n who_o bronchial_a branch_n be_v fill_v with_o injected_a quicksilver_n a_o the_o bronchial_a branch_n on_o both_o side_n of_o which_o the_o pulmonick_a blood-vessel_n appear_v fig._n 10._o part_v of_o the_o largest_n branch_n of_o the_o bronchus_n free_v from_o one_o of_o the_o lung_n together_o with_o the_o pulmonick_a blood-vessel_n and_o lobe_n inject_v with_o wax_n a_o a_o the_o pulmonick_a vein_n b_o b_o the_o artery_n fill_v with_o different_a colour_a wax_n beside_o free_v the_o bronchia_fw-la as_o in_o fig._n 8._o there_o be_v another_o way_n of_o demonstrate_v their_o ramification_n by_o pour_v of_o melt_v tin_n into_o they_o which_o may_v be_v practise_v in_o the_o follow_a manner_n cut_a off_o one_o side_n of_o the_o humane_a lung_n at_o the_o division_n of_o the_o trachea_n b_o b_o fig._n 8._o and_o with_o the_o feather_n end_v of_o a_o goose-quill_n so_o wipe_v the_o inside_n of_o the_o bronchia_fw-la by_o often_o thrust_v it_o into_o their_o various_a ramification_n that_o at_o length_n it_o no_o long_o come_v out_o wet_a with_o the_o mucus_fw-la they_o have_v in_o they_o the_o inside_n of_o the_o bronchia_fw-la be_v thus_o thorough_o dry_v with_o a_o feather_n in_o like_a manner_n anoint_v they_o with_o linseed_n oil_n this_o do_v tie_v the_o mouth_n of_o the_o divide_a trachea_n to_o a_o tin_n or_o iron_n tunnel_n this_o tunnel_n must_v be_v so_o place_v that_o the_o lung_n may_v hang_v pendulous_a and_o free_a but_o lest_o their_o flaccidity_n shall_v too_o much_o compress_v the_o bronchia_fw-la it_o be_v convenient_a to_o pass_v divers_a thread_n through_o the_o external_n part_v of_o the_o lung_n and_o so_o fasten_v they_o to_o the_o floor_n and_o other_o convenient_a place_n that_o the_o lung_n may_v be_v extend_v thereby_o in_o do_v of_o which_o be_v sure_o you_o do_v not_o distort_v the_o lung_n from_o a_o direct_a pendulous_a position_n but_o that_o the_o large_a trunk_n of_o the_o bronchia_fw-la remain_v perpendicular_a to_o the_o tunnel_n this_o do_v melt_v block-tin_n and_o pour_v it_o into_o the_o tunnel_n in_o do_v of_o which_o stand_v at_o some_o distance_n lest_o the_o conflict_n which_o arise_v from_o the_o hot_a metal_n in_o its_o meeting_n with_o the_o remain_a moisture_n in_o the_o bronchus_n scatter_v it_o on_o your_o hand_n or_o face_n etc._n etc._n n._n b._n if_o the_o metal_n be_v make_v very_o hot_a it_o will_v so_o scorch_v the_o first_o passage_n of_o the_o bronchia_fw-la as_o to_z contract_v they_o and_o thereby_o obstruct_v the_o rest_n nor_o must_v it_o want_v fluidity_n lest_o its_o pass_v into_o the_o small_a branch_n be_v thereby_o hinder_v the_o bronchus_n be_v thus_o inject_v in_o the_o lung_n lay_v they_o in_o water_n nine_o or_o ten_o day_n till_o they_o begin_v to_o putrify_v then_o boyl_n the_o whole_a lung_n off_o the_o block-tin_n and_o you_o may_v expect_v to_o see_v it_o much_o full_a of_o branch_n than_o it_o be_v express_v in_o the_o 11_o the_o figure_n fig._n 11._o represent_v the_o ramification_n of_o the_o bronchia_fw-la in_o block-tin_n as_o above_o describe_v the_o twenty-sixth_a table_n fig._n 1._o the_o upper_a part_n of_o the_o body_n lie_v in_o a_o supine_n posture_n with_o the_o os_fw-la pectoris_fw-la or_o sternum_fw-la raise_v together_o with_o the_o cartilage_n of_o the_o rib_n which_o be_v connex_v to_o it_o so_o that_o the_o cavity_n of_o the_o thorax_n after_o its_o viscera_n be_v remove_v come_v in_o view_n a_o a_o a_o the_o cavity_n of_o the_o thorax_n invest_v with_o the_o