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Show W 0/ t/ac Skull. Book Ill Brain-Pan for its Nutrition and increafe, and the more fulphureous or oily Particles of the Vital Liquor are fevered from the Blood, and other Bones for the fupplement of the more unfluons parts, lodged in the Cranres of the _ Meditullium and more large Cavities of other Bones. How this Nutrition of the Skull as well as other Bones 15 performed, I lhcskull- oft/m Stu/z. 959 and, the upper Lamina, wherein the Patient findeth himfelfnot aggrieved, but When the Meditullium is touched, whereupon immediately the Patient is ten. conceive to be fomewhat obfcnre, as the entrance of the Nerves and Ca. pillar-y Arteries are fcarce difcernible by what ways they penetrate the final: dred uneafy, as being affefted with pain, which muft arife from nervous Fibres, i'cfiding in, and giving fenfe to the Medmrllz‘um, in which the numerous veffcls,.m.«\' are accompani ed with little conglobared Glands, which lb'pocrarcr callerh .‘auwfluiwiflfltrh._,,,. ler Bones ', but their perforation in the greater of the Arm and Thigh, are! more plain, as having pervious Cavities, conveying Arteries and Veins to W," ,5 may, 2" 5 a err 591%.], 3‘, ¢)r5;€r'a. Ae'rrvlnpm y,‘ mama, Wm; méa, Tatum 0,. Crihitis ( 1W" exigud except; ) fpvvgiam refer! (ilelmm. Carin/cub: "ml/it (fiv lmmii/ir, the medullary fubf'tance repofed in the larger Receptacles and fmaller Cavi. WWW, ties of Bones: And the Ribs of Infants, and the fungous fubl'tan‘ce of the 1"""‘""'"f" ompagco satin. Skull is befprinkled with Purple. Liquor, which. cannot arrive thither any other way but by the fmaller Channels of Arteries through the Compage of the Bones into the oily body of Marrow (lodged in the Cells, and greater hollownefs of Bones) to impart Life and Nourifhment to it, whereupon it is tinged in its fur-face with a reddifh colour, fomewhat refembling Blood, in a kind of blulh of Red. Spigclim, agreat Mafter of Anatomy, teporteth, That he faw at (Patina in a great Caries of the Dr Tibia, the fubl‘tance of the Bone to be perforated by a linall Artery, Plempiwr being prefent. And Renowned Dicmcrbroetk giveth the like infiance in a young Man, whofe Or Tibia: was foul and very carious in the anterior and moft folid part of it, which being made bare from the Flefh and ‘Pcrioflium, he faw an Artery Brongly beating in the inward cavity of it, wherein the Pulfe vifibly continued many days in the Bone, where it was divefied of all Hefhy Particles. WV", ".7 y :9 77:17 at warm, VafiwlL ‘Je:>ld‘1r¢))sv4 The Glands of I,", the Mtditulli, 5,, '9 "15", 9 er in (1.1 ."I, c ‘isar ,uiw c mummy armruvhzum. 7""[I quit tertzt (Ilgirz's, faiguis exit, immd in ofli' went" temrer fang/(inc PZC'IM reperzet. The Blood is carried by the carotide Artery into the Carunelcs, or rather Glands of the Medirullium, which are fo many Colatories to flrain the finer parts of the Blood, from the more grofs, faline, and earthy, which are tranf- mitted from the Medirirlliirm, to the Tables of the Skull, but the more reli- ned parts of the vital Liquor, are returned by the jugular-s into the Dnnz Mam. Thefe Glands lodged among the Veflels in the Mczlitit/limii may belt be difcovered in Hydropiqne Bodies, and efpecially in the Dropfy of the Head, which was called by the Antients, Hydrocep/mlur. The Glands appearin Hytlropique Bo- tlict. And not only the M'climllium belonging to the Skull, but the Dun: and 'Pia Main, and all other Membranes are furnilhed with many minute Glands, as l have flicwn heretofore in the Glands oftlie (writ, and will Difcourfe hereafter ( God willing) in the Coats of the Brain, as fo many {trainers of the Blood from its Eecer, thrown off by excretory Duels, in Tranfl piration and Sweat, or returned by the Lymphaeduc‘ts and Veins, While the more refined parts of the Succur nutritim Liquor, are allimilated into the Thus having difcourfed in fome manner of the Produétion and Nolirilh- Veffels and Fibres, which do confiitute the membranous, and mufcular parts 1117',},‘,f,‘1:,l°F ment of the two I ables belonging to the Skull, it followeth in courfe to of the Body. This loofe Compagc of the Skull hath different Dimenfrons in feveral _, perfons, and is {0 thin in fome places, that it can fcarce be difcerned, by Tthsiliml- :‘,f:|‘,‘o‘"‘,‘>"' fpeak of the. Mrr/imllinm, a finingy fhbftance (lodged in the Intetff-ic'e of the Lauri/m) full of fmall, forn‘e triangular and quadrangular, and other fexangular C,verns, as fo many Receptacles of a Marrowy reddilh L1- quor, propagated from the uné‘tuous parts of the Blood exuding the Extremities of the Capillary Arteries, difcharging their oily Particles into the limll Cells ofthe Mcdirullium. This fpungy liibllance is furnilhed with great variety of Arteries and 'I llL‘ flirilfruli',"f},‘,'n::‘,'""d Veins, which are very confpicuous in young tender Skulls, and are rendrtd "WWW"- more obfcurc, when the foft and tender fubl'tance groweth more indura- ted and bony in elder per-fons, upon which account thefe numerous minute Veffels are received into the Meditullium, and conveyed into the Lamimc , which being perforated with a Trepan , the Purple Liquor may be difcerned to 0qu out of the Meditullium, which is called by Divine Hiporrah'f, 4mm but Galen being of another mind, fiyleth it by the name of the outward and inward Lamina, as they are conjoynedThe Mctlitullimn is bedeWed with plenty of Blood, difpenfed to it by the numerous Carotide Arteries, whereupon [-IipocrateJ‘ rightly judgeth 1‘ to be obnoxious to Inflammations. generated by a quantity of 8100 impelled out of the terminations of Arteries, and fiagnated in its fpungY fubftance. This lOOfC Compage is not only accommodated with many Arteries and Veins7 but Nervous Fibrils too, which may be plainly evinced by the apphca‘ tion of the Trepan, firf't piercing the glafed and incrulted part of the Skull. 'led- reafon the Tables are fo clofely conjoyned, that they feem to make one en-' tire tranfparent Body. Learned Barrlioliuc rclateth, that he dilfcéted :1 Skull, in which the Mcdi~ The Skull William was wholly deficient, which perhaps was occafioned by abfumption ofjt in old age, in which it may be f0 dried, that it may be difficult to dilcover it,or rather this famous Author diffeéied the Skull in that part, where both the Tables are clofely conjoyned, withour any vifible interpofiti on of a Mcr/itullinm. 'As to the lhape of the Skull, Man may be fitly entitled a Microcofme, as being, not only an Epitome of the greater World, by holding an Analogy With it in variety of Parts and Humots, but by emulating the Globe of the Univerfe in its lphasrical Figure, in which the noble part of the Brain is fafel)' lmmured, as in choice repolitory, to fecure it againft the violent attempts of outward hofhlities. Butif the Skull be firié‘tly viewed with a critical Eye, it will be found "Pt exafily orbicular, but fomewhat oblong in its Shape, and flattilh in its Sides; and more protuberant in the Forehead, and hinder part of the Head, and whatfoever Figure defleéteth from the former, is more or lefs imperfeét, either as wanting the Anterior, or Pofierior Protuberancc; or as being too much depreli'ed on each fide, or too much acuminated on the top, where"P011 the tender and excellent frame of the Brain muff fuffer greater or lefs dif- °r 0', as being more or lefs violently comprelfed by the unnatural Shapes of N It the ham 3 did?ICnL thitknclk. The Figure of the Skull |
