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Show V Book IL Book ll. 0f the Lungs. This Membrane is befet with many Pores (which may be feen,when (he C H A P. XXVIII. 0ft/9e Lungr. Aving Treated of the Diaphragme as the Floor, and of the Wem as the Hanging, and of the Mediafline as the Party-Wall, and the Heart as a noble Utenfil of the middle apartiment: my aim at this time is to difcourfe of the Lungs, as part of its choice Houflioldlluff, which is a Machine of Air, compofed of variety of rare parts. This excellent Utenfil ofthe middle Story, relating to the elegant Fa. brick of Man's Body, may be confidered according to its Situation, Connexi. on, Figure, Membranous Subflance, Veflbls, Glands and Ufa, The Situation oftthungs. The Lobts of The Lungs are feared near the Heart, which it encircleth with Lobes, as with f0 many wings fanning this hot Engine of Motion, and it filleth up thetwo Chambers of the middle apartiment, except that part of them poifeffed with the 'P/eura, Mediaftine and Heart. This curious Engine of Air is divided into two Regions, parted by the the Lungs arc parted by Mediafiine, the one placed in the Right, and the other in the Left Chamber the media~ flint. The Lobcs of the Lungs have a mutual :ntertourl'e b, Vcllxls. of the middle Story, and each part confifteth of two Lobes, the Superior and Inferior, as Partitions, wifely ordered by Nature, that when one Lobe is wounded or corrupted, the other may be preferved. \ The rare firut'iure of the divided Lobes are murually conjovned by Membranes, and have entercourfe with each other, by the union of variety ofVeffels, importing and exporting different kinds of Liquors. The Right and Left partitions of Lobes are fevered from each other by the mediation of the Mediaftine (as by a middle Wall palling between them) by whofe help they are connected in their fore parts to the Sternon, and intlieir hinder to the Vertebres of the Back, below to the Midrifl‘, and The Connexi(irioftlic Lungs. above to the Neck and Back, by the interpofition ofrlie VVind-pipe. E earned Spigc/im conceiveth the Lungs to be tied to the rPlinra and Ribs, by Fibres, which being lhort, faith the \‘L orthy Author, they produce an incurable difliculty of Breathing7 but with the permiflion of this skilful Anatomift (I humbly conceive ) tliefe Fibres are very rare and pretcrnatural as proceeding either from an ill conformation in'the Womb, [or from films Difeafe; and if thefe Fibres were natural, they might be difcerned in all Men upon Dilleélion, which contradiéterh Autopfv. The Figure of the Lungs. The Figure ofthe Lungs do conform themfelves to that of the Thorax, and have their upper ambient parts invefied with a convex Surface as lodged within the circular Walls of the Ribs, and the lower Surface ofthe Lobes is Concave, as fitted to receive the Heart within their foft embraces. The two Lubes rtl‘rmbit the hoofs cfa Bullock: Foot. The Membrane of the Lungs. The two Lobes feared in each Chamber of the middle apartiment mav be molt fitly reftmbled to a Heart or Bullocks Hoof, confiiting of tle Claws,parted all along in the iniddle,and begin in more larac, and end in more narrow Dimenlions, and alfo are covered in their uppgr region with a Convex, and in their lower, with a Concave Surface. The ambient parts of the Lungs are coated with a thin Porous Membrane, borrowing its Origen, as fome will have it, from the Pleura, and as others, from the outward Tunicle of the Vellels, entring into the fuhfiance of the Lungs. The Lungs are blown Up with a pair of Bellows) and are f0 minute,that they hold no proportion in Figure, and magnitude With the Particles of Air, to". rained within the fubftance of the Lungs, or elfe they Would foon traufpire the Pores of the Membrane encompafling the Lungs, before it had fuffici. ently impregnated the Blood with its Nitrous and Elallick Particles, confer\‘ing the vellzal flame of Life. Learned Diemerbraeck afferteth, that though rPM cannot be received throngh the Pores (pinking the Coat) into the fubflance of the Lungs, yet he faith, thin Liquors injeéted through the Wound (made between the Ribs) in cafe ofan Empycma, into the Cavity of the Thorax, may inlinuate them- felves through the fecret Meetin- of the Tunicle (encircling the l tings) into their inward Recefles, and Bronchia, and thence into the Mouth, as the renowned Author hath it in lib. 2. Cap 13. (/2 Tub/m. @» refpimt. Pug, 5 i r. 111'; i116, Memini me Noviomagi [ex ft'ptemr/e Empyrit‘ir ad purir eonruarioncm T/Joratem inter Coflad fiaione aperuifl}, at denique eavaamto pure "ennui/is eorum injeéiioner abflergemer awards in Thoma}: Cawitutem infitdzfle, quarum non tanmm amarum fdporem ore percepermu (quad eliam a Fernelio, @arter), Lommio, (9v aliis obférvattmz ) werum [202mm ([iioqueparlem pep/[mm rejeccrum, quad certumjuditium Brat, in illiy negre poror tuuim pill/norm adea angst/10$ fuiflt, ut Imllum 'PM cmfliiw, fed dunmxat teliuiorerliquorer admittere potuerint. Hypocrare; the great Oracle of our Art ailerted the fubltance of the Lungs to be glutinous, and full of Cells, and numerous Blood-Veflels, as he hath it Scfiione Terrie, lib. d2 camibm‘, his words are thefe in the Original: H) partner‘s Opinion .r the flruaure oftlic Lungs. '0 5 wyd/{wy "Cb 7; 'Z‘F'N" E'fiu'an «US, tn? v34; Exa'ny Lu? "AAth's-anr ti @ffi‘n htgaalrxm, "5d Brig/aver Ext-x; 7729' heir, gsmiimv wafiafl‘trog ohéé‘m mAM.‘ '59 niu'rt'u. (Pu/mo atrmjnxta Cor fit extitit 3 quad in bumido glutinoflflimum erat, Cor calefarirm, celeriter exficawit, weluti flarimam, @ Fiflulufum reddidir, multifq; wenulir refperfit. I conceive the moift clammy feminal Matter, according to Hypocmter, is concreted by heat into a loofe fpungy fubl'tance of the Lungs, which this great Author calleth Froth, as Boys raife Bubbles out of Water, impregnated with fome fatty lubltance, which are "any Veficles filled with Air; f0 that the foft frothy Parenchyma of the Lungs, is nothing elfe but a fpungy Syf'teme of many Veficles of Air (without any cf- fufion of Blood, as the Antients imagined) which Cicero feeineth to allert 2. Natum Dcorum, raritas pnlmonir celebramr, do: afliduirfpongz'is mollitudo adbanricndum flwirimm aptiflima. This great Philofopher as well as Orator con- CICFVO his OPl‘UUh of the Lurgs. ceived the Lungs to be a loofe Compage, made up of Spunges, which are loofe Bodies furnifhed with numerous Cells , the Receptacles of Air, WhiCh much refemblerh the Veficles , chiefly confiituting the fpungy body of the Lungs, often filled, and emptied by the many repeated Expan- lions, and Contractions of the Lungs, celebrated in infpiration, and expiration, the one being aflil'ted by the Midriff and Intei‘coflal, and the other by the Abdominal Mufcles. _ . Ingenious Malpigbimhath given a greater Light to the more intricate and obfture Opinion of Hyporrater, who left us much in the dark, in reference to thc curious firmfture of the Lungs, whofe fubl‘tance is integrated of Malpiglaiur Sentiments of the frame of variety of the Lungs. parts, Air-pipes made up of Cylinders and Orbs; as alfo Sanguiduéts and Lympheduéts. The Cylinders of Air are branched through the whole body of the Lungs, in many Divarications, highly dilated in infpiration. Thefe The branches ot‘th: Wind, pipe. |