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Show Book 111.. Booltlll. A . Of the Glendale Fittiit'ariit teig N words are not without weight, and clearnefs; perplexed, Mum"- Paremhymam Mic, film» but the {ubreqtie‘tit are more farms» nutririum a pm: excite mam" fecernere (15' in pleural: "ere/ 0mm retiforme: tranrfll‘i‘e' 3 and to (iii aé above- As to the FirPt, it IS difficult to under liand how a Secretion [hall be made of the Succm nutricim in lo {mall a part as the Glanrpz'mitaria', not ex" teeding the greatnefs of a Pea : And therefore [hum bly conceive, that the Secretion C H A P. XLVII. De Glandula Pituitaria. The (cat or the Glardula pituitaria. H E Glandula @ituitaria is lodged within the Cavity of the- Sell; .l 57",", without: the verge of the Dura Menynx, which notwith. [landing is fixed to the Procefles of the 0! Splmnoeider before and behind, to render the fituation of it more firm. And the flura Mater defcending to the Glandula rPituiraria, covereth its upper region, only givmg way to the P": {age of the Infundibnlum. The Figure of the Glaudula pimimria. Its Figure is fomewhat deprelled, ConcaVe above, and Convex below, and in fome fort Quadrangular 'in its circumference, borrowing its lhape from the Sella Equina, in which it is encloifired. , The fubfiance of this Gland is more folid then that of other Glands, and is enwrapped in a thin Membrane, propagated from the Pia Mater, and de. rived immediately from the Infundihulum , expanding it fell about this Gland, by whole mediation it is tied to the fides of the Sella Equina, in Hogs, Calves, Sheep, and the like, and is not f0 firmly fixed in Cats,Co. neys, and Dogs, in which the Glandnla pituitaria is ealily parted from the Sella Equina, by pulling the Infundibulum out ofhis proper place: This Gland is furnilhed with {mall branches of Arteries, fpringing out of the Trunk of the Carotides ( while they alcend each lide of it to the Brain) and Veins from the Jugulars, The ules of theft: ‘Glanrls. As to the ufes of thofe Glands, there are various Opinions, Banbimu giveth his, that it rccei‘veth Recrements from the Brain, and difchargeth it a- gain into the Palate, by Four holes engraven in the Skull,which feemeth very improbable; there being as yet no excretory veffel dilcovered in the Glam pituitaria, through which the Recrements may be tranfmitted into thole Faramiaa, terminating into the Palatet The n't of the Learned Dr. Wharton afligneth this ufe ofit, to entertain the (trans hurml Clan! yimiw "'0. dities of the Brain, and to reconvey them into the G'lexur retiformil, and Third pair ofNerves into the Tonfils, and Glands ofthe Eyes, and maxillary Glands, The Authors Words are thefe in his Fourth Chapter, De Glandula ‘Pituitarii, Shprrfluaz cerebri lunatic/irate: quanquamfeipfa excrementofte reputanda'flfl t flu ipfim terrhri, refptfiu tame" aliarum partium aliquid Succi nutricii "f?" inft m" Iinere poflint, (y munrri: lmjur rParerzcbjmatit ejl illum Succum nutritiumd PM" it excrrmemitia fetcmerr, fed qua tramferatfeleélum hunt fnccum, nimirnm it! @lexnr retiformer ner'zzarumfilai torment, indequeper acre/o: alio: di/lrilmimr ill panes, quibu: iiflw eff, quid autem fit dc materia excrementitia, dim ram per minma foramina, animalibm facile confliit‘ienda in Farm Glandulct pIJ/ierioriftld externi, é» a pofleriori Sella Equine parte urrinq', delabi, ad Fihrarflm lamenm ; Sim Fibrqumz, laxumque tunimlum tertii arir max a]: egreflil gnfdm 4 "11E! meninges, cujmfpongiofir (9» perampli: ilzi hici ramir, credibileefl lit/"bl" miditale: imbibi, é» tranrflrri we] ad ocular, we] ronfillar, we! Glandular m"- il/am, quarnm ope baa omner prout earum natura poflulat, bumeé'fantur: Saitl' the Learned Author, though the unprofitable Humidities of the Brain, mil be elieemed excrementiti nus in reference to the Brain; yet in relation W other Pam; they may 1‘ .:rve in them fem: Alimentary Liquor; "if we 5 W is made above in the Brain in the @lexur Cboroez'aler, in the fubfiance of ,hofe numetom Glands, and thence exonerated into the Ventricles, from whence it fometime difiilleth through the Infamlibul am into the Glam‘ p‘imia mm; but if it {hould be granted that a reparation be made in the body of the Glam" pituitaria; how then {hall the Sacra: nutric iiu be difpofed of, liti'th the Author? it may be tranfmitted into the (Plexus retiformif; but thi~ is veé KY difficult to underfland, unlefs the Plexus retifb rmir take its rife fi'oin' the Giant pituitdrias and then the 3mm antriciu: be entertained into its eXtr‘e‘a‘ mlElCS, but the (13/2qu deriveth it felF higher from the Medul la oblong ata, and only Propagatetl] fome branches into the Glam pimita ria, which are inferta ed into its lubf'tanee , and {0 this Learned Author might eonCeive the 3"th nutrients, feparated from the excrementitious part, might be conve yed into the terminations of the nervous Fibrils, appertaining to the T'lexm retifizmir which feemeth very lirange, beca‘ufe the conflant fiream ( as l conce ive) oi the Sum: nerwflu, dillilling from the Brain down, and betwe en the fila; merits of the Nerves, mull necelTaI'ily give a check to this retrograde motia on ofthe Sumu‘ nutricz'ur; but fuppofe it be made in the Glam pit/rip aria, and the feparated Liquor be conveyed into the Wen: retifbmir (whic h I have lheWed to be very improbable) what then [hall become ofthe excre'mentit ious Particles, drawn off from the Alimentary? Saith the Author, they may be r€= ceived into the Filaments of the Third pair of NerveS, which is as difficult to be apprehended as the former, and encountreth the fame perple xity, fleeing the Third pair, dorh not arife one of the Glam pituitaria, but out of the {ides of the {Praceflur annularirg and it may be farther objeéied, that the exc‘rea‘ ,mentitious Pam abfiraéted from the Nutricim,in the body ofthe conglobated Glands (among which the Glam (Pituitaria is to be ranked ) is not to be tranlmitted into the Nerves, but into the Lymphaeduéts 0r Veins. Diemerbroetk giveth his fenfc in the ufe of this Gland, in the Firli Book biffi'w'hmi ofhis Anatomy7 and Eighth Chapter, Vm'or bnjm Glandular ufm- inmaiendm pinion Edi!"l co: ming the efi, qui nontfl peruitam e media cerebri ventricula exripere,/éd Pam" ex drter'io- ufcc! cm Gland. lit rem mirabilir firofa pimira: partem fiparare, (y per ei defuper impofim m ins fundibulum ad medium wentrimlum trait mittere, é- inde ad anterior" Siam v [Myeriom‘ wentriculot precedent per proce m papilla"), efiluat aa' "are: do palaa mm. This Opinion I humbly conceive is not l'uitab'le to the lituation 614m pituitaria, which being lodged under the Brain, in a Cavity of the of the Sella Equina, {hould then make a feparation of the purer parts of the Blood tom the impure, and thence tranfmit the ferous Liquor upward throngh the Infimdibulum into the Ventricles of the Brain, which runn‘eth couutcr to the oourfe of Nature,- that Liquor being a heavy Body fh'ould alcend, and cheated without pulfion, and then one part of the Liquor {hould prefsbeing the other lotWard, by the brisk contraction of the Infundilmlum, of which mo-' tion it is no Way capable, as being dellitu'te of Reilly Fibres 5 But the Learn»; ed Author coneeiveth he hath found out an expedient for this, thongh‘ the l'lfimdibulum hath no voluntary mmiong aéied by Mufcles,or flelhy Fibres‘,yet '1 may have a' natural motion [iratee'din from the dilatatiofi and ceineidenee of |