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Show Uf M7178 5 grifing out of the ‘bmm l‘nzr/im the Skull". Book Ill. . ,\ The Brit pair of Nerves called Olfactory, having a double Ol‘lginatiOn derive tliemlelves from the Cmm Medullx Oblflflgrl/A', between theforpom flriara, and the T/mlami Networum 0ptitorum,eue Branches of Nerves Comin li'om the Medullg oblongata, and making their ptogrel‘s near the {Prmflm Mizmmillarcr, do pals through the 0: Crebrifbrme into the Membrane of the Nol'trils, and are the inl'truments of Smelling, takingtheir rife in a greatpm 'llicislnnimil. from the Fifth pair ofNerves, and are not truly. the Protefiw Mammi/larer, f0 '"EVWC‘W' denominated from their Figure, being two white loft oblong Procefl'es, terminating into a bulbous Form, in which they may leem lomcwhat to rclem. ble Humane Paps, and have their Origen from the anterior Ventricles of the Brain, and not from the Crum of the Medulla oblngata, on which the hang loofely; and from thence being afterward tranlmittcd towardthecircumfcrence of the Brain, are invelted with the ‘Pz'tch-nmx, and being car- ried between the Brain and the OJ Spbcenoeidir and Fmm}, are covered at lafl with the Dura Mater, and are parted one from another by the intercellion of the bony Procefs called Crifla gal/i. ‘ Theircrfm- Thefc Mammillary Procelles are endued with Perforations terminating into iiirnninrriliiy the anterior Ventricles of the Brain, clearly demonl'trated by the injection of "mm Breath into them through a {mall Pipe, theiice conveying Air into the Ventricles, which caufe the Brain to be tumefied. 1 he Cavities of thcfe Proceflts are {0 finall in Man, that they are ltaice dilcoverable, unlels a Dilleé‘tion be made prefently after death, but in Sheep and Calves the round Cavities are much larger and very confpicuous, being often found turgid with Limpid Water; And in Birds the CaVities ol‘ the i\/l;iinmillary Procelles are extended to the Roots of their Bills. . Ttmmmq. Thole blaminillary Procelles cannot be truly accounted Nerves, 33,53,3‘j" 5 by renlon they are not conliituted a; the Nerves are, of many Filaments, §2l§;3.H'd mutually tonioyncd by thin Membea'ies, but are only ProcelIiEs of the Brain) made up of a Cortex and a Medullary l‘ubl'tatnce3 deriVing themfclves ( not as Nerves) from the Nfednlla oblongzrm, but from the anterior Ventricle of the Brain, and are not at all fixed to the Bale ofit: Again, Thefe Procelies are not emitted through the Dun: Mater and C14- m'um, into the Nol'trils, the immediate Organs of Smelling. (who ‘1‘"; And lallly, they lLlVC inanifelt CnVities, with which Nerves are not mirmy‘fim. accommodated, ""‘5‘ they liavmg only intermedial Spaces running between their Filaments; \vlitrcupon l humbly conceive, thele Mammillary PIO- cclles haiing inanili-{l Cavities, are not Nerves, but have Excretory Duets, through which the fei‘ous Recrements of the Brain, dellilling out of the numerous Glands (appendant to the (Plexm‘ Cboroeidei) into the anterior Chambers of the Brain, and are thence dilbharged through the Pores of ti e Dnm Malcr, and minute Cavities of the Dr Ethmoeidei, 85 a Colatory into the Red lpongy Flefli of the Nofirils; and the purer part impregnated with Saline Particles of the Brain , is thence conve)'Cd into the hioiith and mixed with the Malticated Aliment, as a pTCPa' ratory him/hum", the better to dillolve it, and t0 aflifl: the Precipita. tron of the Here; from the Alimentary Liquor in the Stomach. A Learned Book III. OfNerim zmfing out oft/9e 13mm nut/9m the Skull. 1041 A Learned Anatomill: conceiveth , that the mucous Matter deltillinc doWn km the Cavities of the Nolttils is communicated by the Nerves tranl‘mi'3 Tl'ekront" ted from the Brain into the Glands feared in the Nofe, and thence dro in 5‘ (Piaf Of "a: is evacuated by the Nofirils : But I deem it more proba part of the Serous Liquor, flowing out of the Choro ble that the PricingZ 33:3;th eidal Glandsg into Bglxvsi'll'm the anterior Ventricles of the Brain, is the great Fond of the mucous Mat- iii: Recreter pafling from the Mammillary Procefles, and then ce lireined through the Brain "MM" rkfiil ° Colatory Bone into.4the Chann ' els of the Nol'tri . ls. . ""°°‘i"‘ Ch l ° For the farther illuf'tration and probation of this Hypothefis, l con~ 613:5?" ceive it fit to add {ome Pathological inflances: Mr. Maxwell a Gentleman of the Court, often laboured under great Heaviriels oli thdHead and Gen phalick pains,and upon frequent taking of Sniff produc ing great Sneecinos had tee evacuations of Setous Liquor (fqueeced our of the Ventricles gfthe Eng]? clelltlillilnt‘ii,1 tilirough 1the 01‘ Erbmaez'der into the Caverns of the 0 tie, w ic at erlbét freed him as he i dullnefs and pain of liis Head): ' lath [Old me, from the A Maid formerly living in London, was hi hl torture d with r' Headach, of which {he was eal'ecl in the hightgof )her Paroxylmes aby‘ gig: defluxions of a thin iellow Serum out of her Noflrils; The neitt year the Cephalick Dillem per fiercely returning upon her, and the Yellow Recrements being fiipprefled, {he fell into violentevacuation of the companied with a great Stupor, determining into a Rrong Convullions, ac- Apoplexy,where~ upon her Head being opened, a great inundation of this Yellow Serous Matter Was diltovered both outwardly in the Anfra flm, and allo in the iris ward Vcntricles of the Brain. |