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Show 1:78 0f t/ae Medulla Spinalis, or Tit/9 of the geek. Booltlli, Book III. one to another, but are alfo more nearly related to each other in m membranous Nature and Compage. The Sin»: and their fmaller appendages 33:323.?" being like the Veins in frame and ufe, are all reduétory veffels of Bloodfind‘ do differ, as greater and lefs Cavities, the one feared within, the Other CHAP. LIX. without the Spine; and of thefe Veflels Hipotrater, the Great Mafier of our Art giverh a recital, in his excellent Book, De Oflium Nam", n' ‘3‘ mN. {mi m‘; trim; émrt'mm 1; «first Adi/mi i9 VJIPNICAK' lem'ptwumz emfliz Juz‘ r2 1". mua'm 0f the Mmerflpromin‘g out of the Medulla Spinalisi mmn‘uvai/Srz'ov' {1mm 3 Jm.‘ 72‘ HT :51!!thva WXVGTW ipAtCi'm-w it 76 m-mfw [ii/guy {7%th yen" [MC fubfépla trmzfryeifi 41 Spinam extenditur 411M @- nerq/ofa, in reliqzmm [linden/a. tum cor-pm ryemtliu emittem undiq; per wertebrae Cerebri tumult} in Spinalem Me. dullam hedem in madam ammluta inferitur: Upon which, Rolfintim thus elegantly criticizeth and commentsfiwmm (Phrafi: inquit emphatiaz um 2W. mm; "7; angular éusu'm, Healer/z aurcis Corymbis flzcciofa, (viticulid fut}: (limiter [audit furfum, circnm tirtafuam Coronam' bafin, cui imlititur bandit/1m mm. Thukgm ram propaginet aurorafei fmguinu frué‘t'zbue titre/renter, gy'xnwi'vava'I, mm am, I'Zfl‘" divination edema Medul/am Spindle»: amplefluntur, ejufq, membralm‘ tanquam fiafiimiixx, :hlh:13;e:!5: 11114 permit. The fruitful Branches propagated from the Trunk of the Cat/a, ""'""‘" creep through the internodes of the Vertebers, and climbing up the Coats of the MedullaSpirmlir, crown their Bafe with their molt tender wreaths. Thchins The Veins entring between the Joynrs of the Vertebers, and of the 33:55:35; Medulla Spinalis, addrels themfelves to the Sinm, and receptacles of Blood, in". giving ita reception to reconvey it to the Right Ventricle of the Heart, from whence the afcendent and defcendent Trunks of the Vena (aw derive their firft rife, and from thefe greater venous Channels, the fmaller vertebral Tubes are propagated, and the Trunk feated above the Heart, approaching the Subclavian, alfociateth with the vertebral Artery, and difpenfeth fevetal branches through every internode of the vertebers of the Neck, and implanting them into the Sinus. 2:3332315:- . Furthermore, the top of the vertebral Veins arriving near the Occiput, is mm "m Conceive it not amifs firll: to give fome account of the nature of the Nerves in a common notion, before I difcourfe more particularly of the [\erves of the Spine, and their Origen, and Divarications. . Nerves (as to their definition, which giVerh their offence and fpeCifica- I fubfiance, it . is ' whitiili i . and folid, i ' ' rubflance And as to their made of divers thinf i' a s Th of 13mm merits naturally tied to one another, With an innumerable company 0 fine Membranes, and are not perforated With any Vifible Cavities, but only furniihed with many minute Interfiices capable to receive Liquor between their Filaments, into whofe intermedial fpaces it may defiill all along from . . . , . . . . the firflrife to the termination of the Nerves. . ‘ All Nerves borrow their firfi Origen and prinCiple of ‘difpenfation' Girl]? :12:Vigist‘n of from the Brain, or its Proeefs the Medullrz Spinalir, which is Galen; ene plainly exprefled in his Twelfth Book dc an Partmm, and the 4th C apter. 'hgxi' 4‘: a?! air/#1" ytugniy Eym'omG a. ;Q m‘; mpémt 93; diwn‘y eégy, bin at iupscqt!' rim 7;; Aomnh‘; '7 horn; Jr Ewing": 07w are/ewe wit 'étt Jt'i/J‘gy him-m yaw? n‘y yamahv gateway, i9 rm wi‘uvg' .h #17312 u WM?" fiIKZG- ('Mfi'mfldw wu'ymnj. yéviwnzlfta flay. @54th XML/lit mi; Smflmmlm-m maffigmu [-Wfl" Prinripim ipjbrum nerwmm cerebrttm ejl, ipfumq; welut .31 are/umbanetgzza: inofculated into the highefl part of the vertebral Sinur,continued :0 the late- a tionatrixftmm emittit, germm rwere India, welut truncm‘ gm am g" T" or "twig- iiii/iiii.lusu- ral Sinus ofthe Brain, from which alfoa pallage leaderh into thejugularVCln- mm rofurgem, Spinalis efl lWedulla, a quo trance per tollim Flint-Z: d,‘ Vi: And left thefe vertebral Veins lhould be infufficient for the exportation of Blood out of the Siam, Nature hath formed other auxiliary Branches, which do tranfvcrlly intercede the other Veins, as fo many by-paflages to return upon occafion the Purple juyce our of the Sinus, to the great Trunks,immediarely handing it in the Right Ciltern of the Heart. And becaufe the Tm"k of the Van: Cam, feared below the Heart, doth not after the manner ofthc "Hum of Aorta, immediately reft upon the Spine, propagating Branches in 9. (might (hf Vrna courfe to it : Whereupon the Vemz Azygor is produced, fending forth. MS"adouble Branch, which again fubdivide themfelves, furnifhing the Mufcles 3:50:53? of both fides, and the Spine, with variety of Branches 5 and below the RC{22%;nltrléeim‘ gion of the Kidneys, when there is room enough for the Calm to lean nc-élt‘hc mcdii'tciy dc. i Pine, there is no farther need of the Aug/go: 3 the vertebral Branches 1Mhc ' dr . 1. $513: Lomsare immediately ClCllVCd from the Trunk of the (am. ar. ten I‘ - ' . . . mm or Configned The of Senfe and Motion infiruments Bodies, tiori ) are limilar F 1 Ntrvcr. to the reception and conveyance of Animal Liquor. NWT/i quamplurimz‘ dedné'fi in ramarum quarimdam in W (e prying: h 3 inc Imam; So that the long round body of the Medulla de cen infgltBe pom; may be Well flyled a Trunk, and the Nerves fo many fruit u ran , . . . ' . fr ' The CornP (Still):gi§::1l:frl:ifis of great Name, aflirm the Medal/a Split!!!" to be one - pageof the: d' 'ded Bod efpecially in the upper part, but upon a cum Kiwi??? foft Sim l ous fearfh:a uInhiiviiibly concyeive it probable to be a fyflem 9f. many fmall Fi- brlous~ Y hers, whole intermedial fpaces are filled with a tender Vilhd fubfiancg, not: unlike thatof the Mednlla oblongiua, whofe Origen the Corpora flat: Iegg dithfledlongwfl‘e are plainly difcovered to be full of many f.e I? M); t"fizhit" ""91": as f0 many fmall Velfels difpenfed th;ou)grhdtl}ilz4,fubl'ranzienpd cont . cl th ori en of the Spirals: e u dull" bl the Skiillina‘iitd all?) the :vhol: length of it cagriedglown {he splned,r::[;;e£ef . i e" f ' t , that they are fcarce d1 cerni em tiemwar raltlik;$1351" 3:: lowelt the in VifibLe evidently moljt are the MeihjhEEfiiidimt , _ [rich are fraught Wit numerous ma f" ' "mi feveral vertebral Nervefs,Fati)id as tLiEy1c Iarea2:01;]:p; ing :hhgorggkelfip‘fhc ' . _ 7 , h ve rearer or lefs number 0 l res, \ . "1d. obfcure in the in" at Vilihle tani/earigotth: fuffacegof the Medal/a, but ~more ' ' Fila- val71 ere everyment rife, r€Cefl"esof it, in which probably they take;ht;1;firfl: |