| OCR Text |
Show 0f the of the Cortex (f the 1374i". Book Ill. The Air impregnated with the more noble influence of ethereal Particles, flreaming with the beams of Light out of the Sun, and other leflér Planets, is firit received into the Caverns of the Noi'trils, and thence ttanfmitted through the mammillary Procefies into the Ventricles of the Brain ; and after. ThsAirinfi- ward it being a molt fluid thin Body infinuateth it felf through many miiiicaiiiviiio §:;§:?;:2° 3:32;?" Nave/uh nute Pores of the inward Receffes of the Brain into the fubfiance and ambi. ent parts of the Cortex, where it meeteth and eniboclicth it felf with the ferous parts of the Blood, Which are highly refined vvith the fpiri. tuous parts of the Air, and volatil faline Particles of the Brain: All Which mixing together, receive great improvement by Intefiine motion, in which the more grofs parts of the Albuininous Liquor are feparated from the more pure in the body ofthe Cortex, and are received With the Blood into the ju. gular-s; whereas the deputat'ed Particles being the nervous Liquor, are tranfmitted into the Origens and Roots of the nervous Fibrils, and thence propagated through the feveral Proceffes of the Brain into the Trunks of the Nerves, made up of numerous Filaments, curiouflyconjoyned to each other, 3001; III. iooi Medullary Subflance of the Brain and its appendage; whence We may plainly perceive, that theft two great Authors do agree, that the Cortex is furnifhed with an innumerable company of Glands, but differ in the amgnment of their ufe. Dr. Willi: afligneth them this Office, that When the 'Albuminous Liquor is feparated from the Blood in the Cortex, and pafl'eth through the fubfiance of the Brain, the fuperfluous moifiure is conveyed to the Glands, and fo ttanfmitted into the Veins 5 But Mix/pigbim is of this opinion, That the Animal Liquor elaborated in the Glands, is conveyed through many nervous Fibres (every Gland claiming its proper Fiber) and thence difpenlied through the feveral Proceifes of the Brain, to the greater nervous Duets, feated in the Medulla oblangam, and Spinalir. C H A P. XXXVII. by the mediation of thin Membranes. The rm of the Cortical Glands. Thefe Cortical Glands, being lodged in variety of Flexures, do make the outward Gyres of the Brain, and are appended to the MedullaryFi~ bres 3 {0 that wherefoever you cut the Interflices of the Cortex over- The Blood\‘clltls or the conical blinds. 0f the e/[nimal Liquor. Aving Treated of the Cortex, as a Syfleme of numerous Glands, the thwart, the Compage of the Glands feems to overfptead the Medulla of the H refiners of the Blood; Iwill now take the freedom to fpeak of the Brain. And fanguineous Veffels do ftrew the outward parts of the Cortical Animal Liquor, and the produé} of it, and the great end and perfeétion, to Glands, of which the windinginterfetftions of the Brain are formed 5 fo that you may fee the (Pia Menynx, curioufly made up of a reticular Form or Network, wrought with great divarications of Arteries and Veins, which deep- ly penetrate the inmofi fubftance of the Cortical Glands; and bein diffeéted, the Red points of Blood diltilling from the fmall Veffels, dicoverx themfelves: And thofe Glands are alfo furnilhed with many White Fibres, coniigned to convey the White Animal Liquor, which may be fet forth by a fimilitude drawn from Plants, implying that the Herbs and Trees derive their Aliment from the Rind, formed of diverfe united Fibres 3 and the C0" tcx of the Vine or Tree, holdcth an Analogy with this firuéiure, and there is a like implication of nervous Fibrils, both in the Cortex and Brain it ftlfa to tranfinit the Alimentary Liquor to the Mednlla Oblongata @v Mkdulla Spi- nalit, and thence to the Nerves. Learned Dr. Willia rclateth, this ingenious Opinion of Maljiigbiur,afferting the fanguineous Vefl'els (ovcrlpreading themfelves over the 'Pia Mater, andthf Veins climbing up from tl)‘: oppofite Coats of the Brain) do acoi‘t each other) and efpoufing themfelves with mutual Inofculations, do not immediately difcharge the vital Liquor, as in other parts ofthe Body, but being varioufly complicated, make diverfe admirable Plexes, to which finall Glands , which may be feen in thofe Plexes areappended many ( which are fiyled 3322312232": Cboroeidal) feated both in the Ventricles of the Brain, and behind the Ema???" cerebellum : But Dr. Willi: farther afh'rmerh in his Anatomy of the Bram 52:13:51.wit which all the Coats, various Proceffes, and Nerves of the Brain are configu- ed; and will give you, :5; 52/ 1u'7ru, a brief Hifiory of its produéhon, progrefs, and what improvement it maketh by feveral local and lnteftine motions in the Chylc, and ferous Liquor of the Blood, in the Stomach, Inteflines, Mefentery; and how the nervous Juyce enobleth the Blood in the Spleen, Liver, Kidneys, and the chambers of the Heart, and in its [image-through the Lungs, and afcendent Trunk of the Aorta, leading to the carotide Arteries, V which import Blood, (impregnated with nervous Liquor, and diluted with \Lympha) into the Membranes and fubfiance of the Brain. ' . The Animal Liquor, (the heat of mofi refined Spirits, the miniflers. of lutellcaual and Senfitive Operations) oweth its Origen to the ambient parts of the Brain, and is thence propagated by innumerable Fibrils, through various Procefl'es, to the lower parts 0 it, and is thence tranfmitted through numerous Nerves, as fo many Out-lets, and Chanels leading to the midtile and lower apartiments of the Body. 80 that this Liquor (difiilling out of the Third, Fourth, and Seventh pair of Nerves) maketh the nobler parts of the Juyce, fqueezed out of the Tonfillary , and Maxillary Glands, as well as thofe of the Palate, and Tongue: Whereupon the Saliva! Juyce being highly improved by nervous Liquor, is mingled with Alimentary Juyce, extracted out of Meat, chewed in the Mouth where it is embodied with the fluid and elaflick Particles 0 Air, Opening ihe body of the Aliment, and rendring it fit for motion; and as a Ferment giveth the firfl: rudiment to the concoéhon of Meat, in h In thefe words, Vern": ejufmodi waflzrum plexus, cum Glandulia interfefiilfl" vein. mm" cerebri (7‘- cerebe/li ambimm (7 interiur recefliu, acpma'pue inter anfi‘flm' um'év inte‘yiitiomtm brain! ubique flute/i con/pipiumur, And this may be more plainly di covered in a moift Hydropiclt Brain, where the minute Glands Order to the preparation of the milky extract, afterward elaborated in the Stomach, aflified with an accefs of new Liquor, flowing from many Nerves, derived from the intercofial Branches, and the Tar «region, and leCfS me- befetwnh fmall VeflEls, are propagated from them, jmo the Cortical and the Craft inVefiing the inward Coat, all befet with minute Glands, in Whih: ( otherwife obfcuring themfelves) being puffed up with Liquor, 3" eafily made obvious to our fight. Moreoyer, thefe Plexes ferous being every way Medullary feutericlt Plexes, emitting fruitful juyce, into diverfe neighbouring parts, and do at lal't terminate into the glandulous Coat ofthe Stomach,out of which the "VOW Juyce is crufhed by the gentle contractions of the carnous Fibres,into The late ofthe Cortical Glands, |
