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Show " ,2 A, 0/ we (Tc/lick: of Man. Book I. Part IV. Erin; I. Part IV. Of [/90 Teflic/cr of Lil/1min 52 5 Many Learned Modern Anatomifis, will not allow any Parenchyma at all, afferting all Glandulous Bodies to be aggregated of many \"efl'els of feveral kinds; and becaufe they are invefted with a white attire, not wholl made up of Seminal,hut of Blood Veffels,Nervous Fibres,and Membranes.Buc Tgvcmgrfsgc Ihumbly conceive it probable, which may eafily be difcovered, that there 3-31er is another fubftance befide that of Veffels, which entreth into the compofi_ which are the main conftitucnt parts; and the Parenchyma is only a Com- tion of Glands, and is a foft white Afliifion, or Parenchyma, a fpongy Sub- plement, whofe tender Pulpy frrune fupplieth the place of a foft Bed for their repole. The Parcnchyma of the Tefiicles, as to the nature of it, is Mucilaginous, gfi‘pgflfiff and of a clammy white difpolition, whereupon it is eafily agglutinated to the ma, "Mtge; Tefiicular Veffels, whofc outward furfaccs it every way encompaffeth, keep- iiihhc ran ing them fafe and difintangled in a due pofition, to conferve the free Mo- fiance different from the various Tubes. which are of a more folid nature, and alfo from the Parenchyma of the Viftera, and Mufcles, endued with a firm Confiltencc, and a red Colour. '1 his Hypothefls of a Parenchyina, is oppofed by many eminent Anatomilis of this Age, and therefore I [hall ufe my endeavours with their leave, to confirm it with fome probable Arguments 3 at laft begging their Pardon, if they be not fatisfaétory, to evince the truth of a Parenchyrna, in the Glandulous fubfiance of the Tei'ticles : And though it be not accompanied "‘wa with ‘Fat, which would enlarge their Bulk to a difcompofure, yet they are tnc‘H-éliaucs much leifened in Atrophies, the fad Confequents in Heétick Fevers, and :‘dfiuggljgffj Confumptions: So that the Extenuarion of the Teflicles, would not attend W the Emaciation of the Body, were they not interfperfed with a foft delicate fubfiance, adhering to the Interftiees of the VeiTels, called Parenchyma. And though I confefs, that the Teflicles may be leffened by the exhaufiing of Blood, and Nervous Liquor, caufed by unnatural heat in Heétick Fevers, whereby they lofe much of their tenfenefs, and plumpnefs: Yetl tion of the different Liquors, which would be much difordered, if the Veil fels were twincd or difplaced ; which would leffen, if not oblitruét the Ca~ vities of the different Tubes, and difcompofe, if not wholly intercept the Current of various Juices, which ought to move regularly in their diHiercnt Channels And the Parenchyma being of a foft pliable fubfiance, eafily infinuates it '[‘licParcIi~= felf between the V'cllels, and filleth up their Interfticcs, which flow from the 33:33:33" roundnefs of their Tubes, whereupon they cannot be clofely united, by effigy reafon they touch only in fome fmall parts; whence follow thofe Spaces, wagingmthc which otherwile would remain empty, were they not fupplied with this foft mm". tender Matter, adhatring clofely to the outlides of the Cylinders, and doth humblyconceive, that the defeéis of Liquors, would not make fo great a not oniy line the Interfiices of the inward Receifes of the Seminal Ducts, , diminution of the fubftance of the Tefiicles, were they not difpoiled of their Parenchyma ( elfe they would appear more full) which being Colliquated by extraordinary heat, groweth thin and fluid, fit for Motion, whereupon and other different Tubes, but alfo faceth the ambient parts of the Teflicles, and rendreth them even, fmooth, and graceful. it is received into the Extreamities of the Spermatick Veins, and accompanieth the Blood in its Motion toward the C4714, and right Chamber of the Heart. And furthermore, it is worth our farther remark, that the Vijrera ( which hold much analogy with the fubfiance of the Tefiicles as being Glands) have their Parenchyma much lefiened in Dimenfions in fome Chronick Difvapmm eafcs', which doth not proceed fo much from the Extenuarion of the Veffels r‘hyyciififstcgvand Fibrous parts, but from the Colliquation of the Vital Liquor, adhering $333,111,: to the outward furface of the numerous Veffels, which being entertained Efflfiqua'm." intoitthe Roots of the Veins, incorporates with the Blood to fupport its Viral Liquor. decay_ . , rural-rm]. But it may be, fome will inquire into the origen and nature of the Pa- Tl" Primary renchynu, belonging to the Tefiiclcs : To which this Reply may be given, iiiSiErhziiiy-f That the beginning of this Parenchyma, is originally produced by a vifcid iiih‘hfhi rcGenital Liquor concreted, and accrefcing to the fides of the feveral Veffels, . , Tlrevl'arenchyma of the Teiiicles, may be farther cleared up by the EX- (T335355; periment of Excarnating their VeflEls, wherein the Teflicles will lofe their. 25-35533: Magnitude, 'Figure, and Beauty, when, they are divefted of their White 32:3:- of tender Lining, andthen they appear to be a naked Compofition, made up of' loofe 'difumtedparts; whereupon the VeftEls growing flabby, and highly r_' defaced, by reafon they are firippedvof their Union and Ornament, the tender White‘Pulp filleth up the empty fpaces interceding the Arteries, Veins), Nerves, and Seminal Duffs: This Experiment may be celebrated by [.11¢;199gi,M3€¢ration of the Teflicles in fair Water, and afterward they may bydivelicd of their white pulpy Lining, by a gentle fcraping, and by frequent "milling the Tefiicles, whereby the Veffels may be parted from their tender allies; fo that their compage appears uncouth in the Change 0‘ Figureand Colour, as bereaved of its Parenchy'ma. But But fume may ask, How this fpnngy fubi'tance fluffing up the vacuities £22,??th of the Veliels, is uourilhed and maintained P To which this anfwer may be l'arcnfchyreturned, That it is fupported by the fame principles, or by fomewharana- finish-ill: logous to them7 of which it is primarily Conftitutcd, which are Particles of Genital Liquor concreted: And Iconceive, the Nervous juice, and the delicate part of Blood, much refenibling the Seminal Liquor in nature, do repair the decay of the white foft fubfittnce interlining the Vefl'els ; lb that when the Serous parts of the Blood, and the Nervous Liquor do pafs be- $2,233)" tween the various Cylinders, fome parts are left behind, and being Con- "0"""1‘ i a, . creted, do Crement the Tefiicular Veliels one to another, and do detain every Minute Veffel in their proper place, as they are lodged in the eafie pliable fubfiance of the Parenchyma, as in a foit Bofome, which may be afligned upon good grounds, as one Life of the Parenchyma of the Ten fiiclcs. ‘ A fecond ufe of it may be fetched from the firfl; Elements, as being originally produced of Seminal JUICC, and alfo from the Aliment, by which it is refiored; the Nervous Liquor, and the more mild parts of the Blood, which do exalt the Parenchyma in their paffage, with volatil faline Particles: So that the Vital Liquor, moveth out of the terminations of the Arteries, into the foft and pulpous interlperlions of the Veffels, where it receiveth new imprasgnations of Spirituous and Saline Particles, whereby it is tendred more fit for Seminal Liquor. thrna belong~ Ingtothcrciiiicsiirgiidm gaff??? Partnthyma. The third ufe of this dun r ‘ fubltance, interlining the various Tubes of Tliethirdul'c the Tcliicles, is not only tot xiLlE the gentle parts of the Blood, one In- :,fy‘,2§,""°"" gtedient of the Materia Subflrizm of the Semen, but alfo to give it the advantage in its Motion through the Parcnchyma, to obtain a Secretion of the ferous mild parts from the more (harp and fierce, and the more delicate T tt t r t , Minute |