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heart_n artery_n spirit_n vital_a 3,442 5 11.1088 5 true
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ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A96369 Peripateticall institutions. In the way of that eminent person and excellent philosopher Sr. Kenelm Digby. The theoricall part. Also a theologicall appendix of the beginning of the world. / By Thomas White Gent.; Institutionum peripateticarum. English White, Thomas, 1593-1676. 1656 (1656) Wing W1839; Thomason E1692_1; ESTC R204045 166,798 455

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solid parts are more susceptible of and longer hold 4. Again because the watry parts are very thin and as it were in a middle between Water and Aire in those long and narrow channells 't is clear that they are both extremely passive of every impression from without and transmit it to their fountain or head 5. And because their head has a connection with the principall fountain for the most part the same passion will passe on even to that in which the heat being very acute and spritely and consequently capable of sudden motion a change in the Plant proportionable to its nature will necessarily follow the impression made upon it 6. This Plant therefore will have these two qualities to be stir'd up as it were and irritated with all occurrences from without and this very principle or head thus irritated will have power to move any part of the Plant out of its present site into another according to the manner and measure of the irritation 7. Which two making up that whereby we distinguish living Creatures from such as have no life namely this that upon all occurrences from without they can move themselves 't is evident that the name of an Animal or living Creature agrees to this Plant We have therefore an Animal consisting of three principles a Heart a Liver and Brain watred with three rivers of the Vitall and Animal spirits and the Bloud by the three various Channels of the Arteries Veins and Nerves 8. But because all things are increas'd by the same things whereof they are made and all mix'd bodies are compos'd of the Elements 't is clear that Animals may be increas'd by all bodies so that they be furnisht with fit instruments to make the necessary transmutations 9. But some bodies are of a harder transmutation others of an easier wherefore bodies ought to be chosen fit for the food of the Animal and those that are chosen should again be resolv'd into parts that the best may be taken and the worse rejected and this as oft as is necessary that is till such are chosen as by mere concoction and mixing with the humours of the Animal may be reduc'd into a substance like it Now whilst the fibres are distended with this moisture both they are strengthned by it and the spaces between them are fill'd up and thus the Animal becomes bigger 10. And because this is brought about by concoction those bodies which have not yet arriv'd to the degree of the Animal must needs be the most connaturall Aliment LESSON XVI Of the Motion of the Heart and some consequents of it 1. AGain because the Heart has heat and moisture in it and moisture boyls with heat and is turn'd into fumes 't is manifest the same moisture does not remain constantly in the heart but being resolv'd by the heat is cast out by the motion of the Heart swagging down and shutting it self with its own weight till 't is open'd again and swell'd with other moisture flowing into it 2. There is therefore a continuall flux of moisture through the heart which heated in it and then cast out to be dispers'd through the Animal conserv's it in a due temperament of heat 3. Out of what has been said may be understood what a Disease and the Cure of it is for when any part is indispos'd so that unwholesome vapours fume out of it they mix'd with the bloud overrun and discompose as much as they can the whole body and the very Heart it self 4. And according as these vapours do more frequently rise to such a bulk that they are able vehemently to assail the whole Animal so much the frequenter are the Fits of the Disease And thus some are continuall and others have intermissions some every other day some tertians some quotidians c. 5. And the true nature and Method of Curing is To seek out the part originally ill-affected and apply remedies to that 6. Thus too it appears how Physick expells one certain determinate humour out of the whole body for a Drug c. being concocted in the Ventricle which has a power of dissolving and rendring fluid a certain humour of the body its vertue is diffus'd through all the Veins by the fore-explicated Motion of the Heart whence it comes to passe that being provok'd to stool that humour rather and more then any others follows out of all the members or if the Physick be diaphoreticall that will sweat out more then any of the rest 7. Lastly 't is clear since an Animal is a Plant by the highest concoction a Seed or compendium of its nature may be framed in it as well as in Plants which duly ejected into a congruous ambient body may spring up into a new Animal 8. Now this seed coagulates first into a Heart then into a Brain and at length into a Liver out of every one of which their own proper little Channels spring as is observ'd by those that pry artificially into these things LESSON XVII Of the progressive Motion of Animals 1. OUt of what has been said it may evidently be concluded that since the Heart is mov'd naturally and by its motion presses out a fumy humour which they use to call the Spirit into the Channels connected with it self and into the bodies joyn'd to it and the Flesh is fibrous viz. certain parts constipated together of a world of minutest fibres sticking to one another and since if a connaturall moisture especially being warm get into such a body it makes it swell and of thin become thicker of long shorter It comes to passe that the Members whether consisting of such fibres or knit together by them attain some kind of locall Motion by that irrigation from the Heart 2. Again the Channels especially if they are extremely little will swell too and become shorter 3. Since therefore 't is apparent that there flow abundance of Spirits from the Heart to the Brain and again that from the Brain through the whole body mostsubtilly-hollow nerves are extended to all the members and lose themselves by their dispersion as it were in the Muscles 'T is plain the Muscles will swell with these spirits as oft as the Heart overflows and consequently become shorter and the parts adhering to them be drawn backwards to the head of the Muscles and which clearly follows all the extremities of the body be mov'd from the motion of the Heart according to what is convenient to its nature 4. It follows too how certain other members which have no Nerves but only fibres have motions of their own which consist almost in nothing else but in contraction and dilatation For the fibres being made shorter by their irrigation they draw the body with them into that figure which follows out of their contraction which when the fibres are transvers'd is dilatation when other ways set contraction 5. Again hence appears how the progressive motion of an Animal is effected For an Animal which is mov'd by walking whilst it stands still