| OCR Text |
Show a, 0f the Vcnrric/cr cf the ‘Brain. 1 l eTh'rd \ nitride The hinder Lnity is a grin nt' ll : H rrn Vtritrisin. ‘1 hr Fourth Vcrtt rtle. A Jim called a 'cn. Boole lll, 7/90 Ventric/er of the ‘Brain. Famix, and do make a little Cavity or Ditch in the middle, for the defcem of this Third Ventricle, compounded ofthe Two former, pafling under the This Salt Water ( lconceive ) proceeded from the Arterial Blood, and Was Arch of the Fornix, doth relémble a little oblong Ditch, pafling between two finall Hills. The Third Ventricle being a common Cavity arifing from the union of the Right and Left, in branched into Two fmall Cavities, and one proceed. ing from its lower Region, formeth an acure Angle; and though its Whole length feemeth to reprefent an oblong little Trench, yet it tendeth firaight downward towards the Glam Titrzitaria. Glands, and thmngh them dil'tilled into, the Ventricles. A‘s to the generatron of the Stone, I conceive it was compofed principally of fixed Salt, min ; But the other hinder Cavity is no finall portion of the Third Ventricle and pafling down, between the tfliform and Natiform Procefl‘es, and up.) on the beginning of the Marla/[a Spinalir, bendeth backward to the Fourth Ventricle to which it referreth. The beginning of this Cavity, faith Learned Ve/alim, is not perfeétly of. bicular, but in lime fort triangular; andin its lower part, keepeth the acute Angles of that Cavity from whence it proceedeth; but in the upper P3" 21 tranl‘vcrl‘e line may he leer), which uniteth both {ides ofthat Angle, {Dd with them makerh two other Angles. The Fourth Ventricle is lafi in Order, as well as Dignity, and is the lcali and the moi} lolid7 being a Sin/m, pafling between the Cerebellnm and Alain!Itl Spinalir,and being larger in the beginning, and growing lefs and lel's to- wards its termination, inanianner refembleth a Pen; from whence it is n called by Hemp/131m, and not without rt'albn 5 for ifyou compare the Simks with that part of the Pen we dip not into the Ink, you may mark the Orifice immediately above it, which is round, and it litly anfwereth the end of the (iavity of the Third Ventriele; which is permanent under the Natiform led with an earthy Matter, and after concreted into a Stone, by the petrifying quality of the Salt Water, which is frequently found in Mineral Wae‘ tcts, which have a difpolition to petrify Wood, or any other Matter injea-a cd into them, , The Antients afligned the tale of the Chambers of the Brain tphea Mine, inliitured by Nature for the Coining of the Animal Spirits ;, which being of a fubtle fpirituous fubfiance, cannot at all be confined within the lbaciom territories of the Ventrieles; WhereUpon I burnny conceive it more conibi mm to Sonic and Realon, that they are defigned b Nature to be receptaa cles of fetous Recrements ( fecerned from the maths oi,Blood in the, Choroeid dal Glands ) which difiil through fecret M94171! into. the Cavity of the Ventricles, which difchargc themfelves either below, by the Infima'ibuiupt, into the Glandula pituitaria , and there receiVed into the extremities of the Jugulars 3 or the Recrements are received above, out of the Ventricles into the mammillary Procefies, and 0: flwngiofum, and f0 codveyed into the Cavie , ‘ ‘ _ A tiesof the Nofitils. Another ufe of the Chambers of the Brain, may be (was I imagine) to receive Air into their empty (paces, which may be thus difpol'ed: The Air being lirli entertained in infpiration into the Cavities of the Noiirils; the greateii part is tranfmitted by holes leading into the month, and l‘ome airy Particles may afcend and pals through‘the 0r Calatorium, into the latget" Chambers of the Brain; and afterward the Air infinuateth it (elf into the~ in that part of the Medal/a Spinalir, when it taketh its leave ofthe Skull, and betaketh it {elf to the Spine: And the tWO Angles1 which we apprehend to be made between the Point and the upper part, made lotthf: holding ofthe Ink, and the {ides of the Cavity, which you may dilcovcr f0 realm the Air, confifiin‘g of thin, fluid, elaf'tick Particles, is always in motion, which naturally tendeth upward; whereupon it may be readily tranlir mitted upward through the Noflrils, and Concave mammillary Procelres,ind t'ity, which is leen in the Cerebellar", being; flrallow, and broad? ! the" long, is formed between the two oibicul ar l'rocefles of the Cert/Jelly!!!) by which it adhere th to the Illa/Mlle Spinalir, and betWeen the part of the Vcrniform l'roecls of the (probe/him: And this malteth another partOf the Ventricle, where it both in its anterio r and pofierior Region is Cofl' tinued to the Carol/rum and (‘t'l'i'llellufll 3 and where no part of the 0"" Lei/mu is, it is joyried to the Spinalrs Marin/l a. Though this Ventricle feemeth to be invefie d with a thin Membrane: both in the fore and hinder Region, and it is wrapp ed with it in its former, where it As alfo is conjoyned with the Brain, and the Natzfirm ProceliitSthis Ventricle7 is CO\'Cl‘Cd with a thin Membrane in its hinder Region, wheretheft-rebellion is contiguous to the Spinalia Medulla. t" Renowned [\crknigi'm upon the Brain of one Weflpbalui a Natural , he faw the anterior Ventrie les more then half full of falt Water and found in the Right Ventriele a White Stone, that weighed Thirieen Grain" This found in tin: Right Vera. Pores of the Corpus talquum, and other Medullary and Cortical Procefl‘es of bemofl like to the {ides of this Shim. ' By the lides of‘the Cavity of the Met/1111a Spirm/I's where there Angles are made, is leafed everyway around Procefs , to which the CerebelIum is iaflned, and made contiguous to the Medull a Spinalio‘, lb that the Mada/la Spinalhfonnerh one part of the Fourth Ventricle; but the C2- lot! Salt 'watcr . tranfmitted from the Carotide Arteries of the Plexm Cboroeided‘, into the Procefs, and then you may obferve the print of the Pen, with which . we write, to be like the lower part of the Simw, where it bath a very {mail Cavity The rturid l‘x'cctl: to win h the L‘mhtl/um is aflixcd. Book III. the Brain; Which affertion may be founded upon t is probable eonyeéture, by to the chambers of the Brain, and may thence be carried through fmall Meg am into its more inward ReceITes, and ambient parts, which are made up of many Cortical Glands, Compofed of numerous Veffels of Various kinds, in Whole lnterflices the more mild parts of the Serous Juyce being evered from the vital Liquor, are impregnated with volatil faline Particles, rclident m the Cortical Glands, wherein the mild parts of the Blood enter into coma munion with the thin fluid Particles of Air, infpired with atheteal Atoms, reaming out of the lucide body of the Sun, and other Luminaries; whore, benigne Influxes are difplayed with the Rays of Light,into the fubtlc body of Airadil‘pofi'ngthe Albuminous Liquor, as with a form in order to the generate on of Animal Liquor and Spirits, by rendring them fit' for the excreifc of Life) Still-e, Morlon, and nonrilhment, which are the ufefitl and noble mllatua "EMS: made by the Omnipotent Agent, for the prefervation and pctfeé'hofl 0f Humane Bodies. tricks. |
