Selected quad for the lemma: cause_n

Word A	Word B	Word C	Word D	Occurrence	Frequency Band	MI	MI Band	Prominent
cause_n	bring_v	effect_n	good_a	1,532	5	3.6660	3	false

Text snippets containing the quad

ID	Title	Author	Corrected Date of Publication (TCP Date of Publication)	STC	Words	Pages
A28882	A treatise of the reason of muscular motion, or, The efficient causes of the contraction of a muscle wherein most of the phaenomena about muscular motion are explained / by Richard Boulton.	Boulton, Richard, b. 1676 or 7.	1697 (1697)	Wing B3833; ESTC R26545	27,221	134

they become destitute of Motion That the Animal Spirits simply cannot cause the Contraction of a Muscle is proved because by a Ligature on the Descending Trunk of the Aorta the Inferior Parts become destitute of Motion For tho' the Influx of the Animal Spirits be not hindered yet for want of Arterial juice the matter requisite for the Composition of this Subtile Liquor is not laid down in the Glandules and the Muscles the Instruments of Motion cannot Contract without an Efficient cause From what is contained in these two Paragraphs it appears that neither the Animal Spirits nor the Arterial juice simply can cause the Contraction of a Muscle because when the Animal Spirits are hindered to flow into the Glandules to Subtilize and prepare the Arterial juice it is not thin enough to be driven out into the Fibers And tho' when the Influx of the Arterial juice is hindered the Spirits are permitted to flow in yet by Reason of the small quantity of 'em they run through the Fibers without distending ' em That this Arterial juice ought not nay cannot pass into the Fibrous Cells till subtilized and prepared by the Fermentation in the Glandules is Plain because if it could they wou'd be stuffed up with the quantity of it driven in by the continual course of Circulation so as to Contract the Muscle against our Will which is otherwise Now since the Arterial juice cannot pass into the Fibers till Subtilized and since the Animal Spirits are not enough in quantity moreover since neither of 'em simply are capable of Contracting the Fibers and if either be obstructed the Action is abolished I say since it is an Action that depends upon the mutual Assistance of each it is apparent That it must be performed by a Liquor resulting from a Mixture of both And then we must of Necessity allow a Communication of these Vessels else there could be no mixture of their contents and the Arterial juice must be prepared before it can be forced into the Fibers for the Reasons beforementioned to which end it will be necessary that the Vessels terminate in the Glandules That their Contents may be mixed and that this Subtile Liquor resulting from a Mutual conflict of the Animal Spirits subtilizing the cruder Arterial juice by Fermentation in greater or less quantities accordingly as the Spirits are laid down by the Nerves may be prepared and made ready to be driven into the Fibers To promote the Fermentation and the Preparation of this Subtile Liquor the forcible influx of the Animal Spirits and of the Arterial Blood much conduce For be the Temper of the Arterial juice and of the Animal Spirits never so good unless they are driven violently one against another there would be required a longer time before they could be so mixed and fermented as they ought but the succession of new Matter admitting no long delay it is requisite that they should be thus forcibly driven in together to the end that the Spirits might be diffused through the whole Mass sooner and that their Minute Particles striking more violently against the fixed and compacted Particles of the Blood might more immediately break and separate the strict Union of its Parts and by a violent Fermentation sufficiently dissolve and volatilize 'em in so short a time as the Continual Pulsations of succeeding Humors admit The violent concourse of the Blood and Spirits do not only promote this Fermentation and the separation of the Subtile Liquor but also successively force the Matter prepared and separated into the fleshy Fibers This is so highly Probable that it needs no Arguments to make it more Evident it being the unavoidable consequence of a continual Circulation Now I have given the Reasons of Voluntary Motion and the Efficient Causes of the Contraction of a Muscle it will be easie to unfould the Reason of Involuntary Motion That Voluntary Motion depends upon the Will is manifest and that Involuntary Motion is not at all Subject to it but is performed not only without the Dictates of our Appetite but against 'em is so evident that it would be superfluous and useless to dispute it I shall only shew how it is performed which is indeed a little more obscure As Voluntary Motion is perform'd for as much as the Pores of the Brain are dilated according to our Appetite so that the Animal Spirits flow more plentifully into the Glandules and prepare a sufficient quantity of the Subtile Liquor to distend the Fibers as it passes through 'em so those Pores which lead to the Nerves serving to Involuntary Motion are proportioned in such a manner that they continually conveigh Animal Spirits in a sufficient quantity to cause a perpetual Motion These Pores being so proportioned there is no need that they shou'd have such an Organick Motion as those serving to the Instruments of Voluntary Motion because since they are proportioned so as to carry Spirits in a competent quantity there is no necessity that they should be either Dilated or Contracted To Prove that these Pores do lay down a competent Quantity of Spirits to be carried to the Glands I need not bring many Arguments for its plain and evident to all Practitioners in Physick that when the Spirits are too much carried forth and exalted as in a Diary Fever the Pulse is strong and vehement and by a too great exagitation of them it becomes more quick and frequent it is also Evident that when the Animal Spirits are depressed the Pulse is Weak Slow and Rare as most commonly in Women subject to Hysterick Fits and when the Spirits by an Acute or Cronick Distemper are worn out and almost spent the Pulse is either Vermiculans Formicans or Tremens which are signs that Nature is almost spent and ready to yield to the Distemper I say this is evident enough it is then beyond Contradiction that a healthful Pulse depends upon a moderate Quantity of Animal Spirits and that they continually flow into those Nerves leading to the Instruments of Involuntary Motion and as their Quantity varies so more or less of the Subtile Liquor is prepared to distend the Fibers of those Muscles When the Spirits are weak or almost spent there must needs flow a less quantity into the Glandules and when they are exalted a greater and if Extremes either frustrate Natural or cause Preternatural Effects we may not only conclude that Natural Actions are performed by a moderate Quantity but from hence we may bring good Arguments for a further proof and confirmation of my Hypothesis about Voluntary Motion Since I have said that the Spirits by Reason of a particular Proportion of the Pores flow continually in a just Quantity and that these Pores are not subject to be Dilated or Contracted according to our Appetite it remains that I should shew how it comes to pass that the Systole of the Heart is interrupted with such constant Diastoles whereas when the Pores serving to Voluntary Contractions are

to get it forwards Mr. Cowper Mentions an Experiment how by an Injection of Water into the Crural Arterie the Muscles of the Legs renue their Contractions From this he would infer that Muscular Motion is performed by the Blood as a Pondus but tho' his Myotomia Argues it came from an Inquisitive Author yet I rather an fully perswaded that the Blood does not Act as a Pondus because this Experiment pleads against it but to avoid a long dispute I shall only give the Reason of the Phaenomenon Before the injection of this Water the Branches of the Arteries are full of Blood and Arterial juice and when by the mixture of the Water with this juice it is attenuated and driven into the Glands faster than it can be received by the Venous Channels the most Subtile Part is by the force of injection strained into the Fibers and distends 'em so as to Contract the Muscle Perhaps here it will be objected that if the Water can thus pass through into the Fibers what need is there that the Nerves should lay down their contents in the Glandules I answer that the Water is thin and apter to pass through those Ducts than the Arterial juice which is thick and viscid wherefore it is necessary that the Nerves should lay down their contents there to Attenuate and Rarisie this Thick juice I have seen People inclining to a Dropsie whose Blood and Serum was much diluted could move much more nimbly tho' more seebly than some of a healthful Constitution whose Blood and this Arterial juice was thicker and not so much diluted which doth plainly shew that the thinner the Blood is and the more diluted the Nutritious juice the less quantity of Spirits is required to subtilize it and make it capable of passing into the Fibers It may easily be observed that those People whose Spirits are strong and their Arterial juice very thin are Nimble but the Contractions of their Muscles are not so durable as of those whose Serum is of a thicker Consistence For tho' in the former more of the Subtile Liquor is prepared yet by Reason of its Tenuity it 's sooner receiv'd and carried off by the Lymphaeducts which makes the Contraction shorter Those whose Blood abounds with fixed Salts Phlegmatick Humours which too much dull and resist the Activity of the Animal Spirits are always slow and unapt for Motion whereas if the Blood Acted as a Pondus they must be more nimble and strong because the thicker the Blood is the heavier would be the Pondus As Muscular Motion is many ways vitiated by the fault of the Arterial juice or of the Spirits and consequently by the Distemperature of this subtile Liquor so it is very often depraved and accordingly as the Mass of Blood degenerates from its genuine and proper Nature are produced various Diseases or Symptoms of Diseases viz. Cramps Convulsions Palpitation of the Heart Leaping of the Tendons in Fevers c. for a farther illustration of my Hypothesis before I conclude I will give the Reasons of these Phonomaena When by an Abuse of Non-Naturals the Ferments of the Viscera are perverted and by the faults of the Pancreatick juice and of the Spleen an Acid or Austere Salt is carried forth into a flux presently the Mass of Blood is vitiated The Animal Spirits meeting with this vitious Salt and fermenting in the Glands do there cause irregular Explosions of matter into the Carnous Fibers subtilized in that Fermentation whence follow irregular Contractions of the Muscles Why Convulsive Paroxysms come at uncertain times will easily appear if we do but consider the Procatartick Causes amongst which I shall only mention two viz. The Quantity of Morbisick matter irritating Nature to an Expulsion of it and sudden Passions of the Mind The Quantity of Morbisick matter is far greater in some Bodies than in others before the Spirits are able to recover themselves and to endeavour an Expulsion of it In the former Case Convulsions are Universal and seise the whole Body in the Latter Particular the Morbisick matter being accidentally driven more on one Part than another Again in some Bodies it is sooner heaped up being generated in greater quantities The Matter heaped up at the first is very crude and thick and although it be cast forth into and Circulates through the Musculous parts and continually Ferments with the Spirits in the Glandules yet because it is not sufficiently attenuated to be driven forth into the fleshy Fibers till by frequent Circulations and Fermentations it is exalted from it's state of sixedness to a more Volatile no Convulsions succeed Moreover as long as it continues in its state of Crudity the Animal Spirits are much dulled and their Activity quashed by mixing with it but it being at the length subtilized and rarified by frequent Circulations the Animal Spirits recovering 'em selves and violently Fermenting with it in the Glands carry this Vitious juice explosively into the Fibers The Reason why this Motion is Involuntary is be cause it is not produced by a greater quantity of Spirits flowing from the Brain accordingly as the Pores are dilated by our Appetite but by a mixture of Morbifick and Fermentitious Particles which cause Preternatural Fermentations Expulsions of Matter Attenuated thereby Convulsive sits are sometimes brought on before the Morbifick matter gradually arrives at this state of tenuity when upon sudden Passions of the Mind the Animal Faculties quit their Stations and being over-power'd by external Objects can no longer moderate the Emanations of the Animal Spirits The Formal Cause of the Irregular Emanations of the Spirits in these Convulsions is this the Pores of the Brain being shut up to keep out external Objects heap up the Spirits till by Reason of their quantity the Pores can no longer retain them and then the Spirits rush out quà datur portà in a greater quantity and violently setting upon the Crude juice which they meet with in the Glandules strongly Ferment Attenuate and carry it forth into the Fibers of the Muscles wherein the Spirits are thus accidentally laid down The Brain being thus emptied the Pores are shut up again till the quantity of Spirits make way again and so successively follow Convulsive Motions in this or that Part where-ever the Spirits set upon the Crude Morbisick Matter The 〈◊〉 of the Heart as the 〈◊〉 ed Dr. 〈◊〉 has noted 〈◊〉 proceeds 〈◊〉 Convulsive Motion The Reason why the Morbifick Matter only shews it self in this part and at the same time in no other parts of the Body in this The Mass of Blood 〈◊〉 nated with a Morbifick 〈◊〉 and whatever is the Nature of it since it is 〈◊〉 〈◊〉 the whole Body 〈◊〉 〈◊〉 Rationally expect Universal Convulsions as well as 〈◊〉 But this Morbifick Matter being as yet Crude and not of a sufficient Quantity 〈◊〉 〈◊〉 Nature in all the Parts of the Body these Effects are only produced in this Part where a large Quantity of Spirits is