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Show FOf t/JC Corpora Striata. Boolr ITI- AW, __ _ . \ The Black is made up of a number of Filaments, and. the White of a nulpy hibl‘tance. interlining the vacurties of thefe oblong Fibres, which take .15 their progrefs all along:y the length of the Corporzz Striata : And according to ‘ntil cur- Learned Dr. Willis, do run up and down, to and from the Mcdulla oblong", as lb many Chant-ls, wherein the Animal Spirits are tranfmitted from the (or. PM Calla/1m: to the Corpom Siridm, and Meclnllzz oblongata, and ( as the Re. nowncd Author will have it) from it to the Corpm callofimz. This l'iypothefis is grounded upon a conceived circulation of the Sum: Nxtlriciu! in the Brain, but I molt humbly conceive, With deference to the Excellent Author,that the Filaments do wholly defcend from the Corpus calla. n tmoll i hit: [mu to the Corpora Stridta, Medulla oblongata, and Spinalia 5 So that according to the Struc'lure and Polition of the Fibres, The Nervous Liquor ( in Which the Animal Spirits relide ) ltreameth from the Cortex, through the various "‘5'" Medullary Procefscs to the Bafe of the Brain, and from thence hath no retrograde motion, by reafon (as I conceive) the great delign of Nature is to liippl y the Nerves fpringiilg from the Medulla 01110113414, and Spindle, with Animal Spirits and Liquor; 80 that all the numerous Nerves do receive their m in we :1. fruitful ltreams of Smm; Nutricius, from the Brain, Cerebellum, and Medulla firing/is, as f0 many Fountains tranfmitting feveral Rivulets into the whole Body, giving Feiile, Motion, and Nourilhment (in fome degree) to all parts, which do expend (0 large a proportion of Nervous Juice, that no inperfluity is left in the Bafe of the Brain, and its adjacent parts, to fupply a Retrograde motion ( which if granted ) would hinder the delcending current ol' the Animal Liquor, and Spirits, toward the lower Region of the Brain. And the contrary defcending and albending fireams of the Sum: Ncr'vofm‘, and its Spirits, would much impede, if not wholly obflruét each others oppolite motions. And farthermore, it is not needful that any return of the Nervous Li- quot ( impregnated with Animal Spirits) {hould be made from the Bale of the Brain to the more inward Receises and Cortex, when there is a produéiion of Animal liquor continually made out of the albuminous part of the Blood ii the ambient parts of the Brain, and thence propagated downWard to the feveral Medullary Procelses to invigorate and nourilh them, as they pals to the lower Region of the Brain, Mtdulla fpinalia, and Cerebellar», to :16}th fruitful Nerves lpringing from them, with Spirits and Vigor, Book Ill. C H A P. XLI V. 0f the Medulla Oblongata, and in dppcna'mzt Troceflcr. Aving treated or the Cortex, Corp»: callafum, Form'x , the Ventricies 'Plexm Cboroider, and Corpara Strianz, it follows in courfe thati lhould {peak fomewhat of the Mednlla (feared in the Bale of the Brain) and its appendant Proeefl'es. : To this eminent Procels the Corpus tallafitm is conjoyned by the interpo lition of the Carport; Striata, and to its Caudex +, immediately. And allb to it are appendant many {mallet Procelies,the T/Jalzzmi Nerwrum Opticornm, to the Natiform the Proceiiés, and their Protuberancies, called Te er, and the Pom Varolti,or 'Procefl‘ur annularis, which encircles the Medal/a oblong/1m, And to the binder part of it is ' appended the Cerebellum, and to its Anterior Region the Brat/2m of the Fomix embrace its Crimz +. The Conner?» or" of {hr/14::u‘ulla DIE/erg:I1. + 7.45, iT-AB-U, The Medulla oblong/1m is of very great rife by reafon of the Oliaélory and Ocular Nerves, the Animafiick', Motory, and Pathetick, as alfo the 'Par Vagiiw, take their rife immediately from it 5 And the fifth, iixth, and lizvent h pairol Nerves from the Annular Procefs, affixed to the Medal/a oblwzr mm, which is derived from the Corpom Stridta, as its firfl: Origen, after which the Crum of this Medulla, proceeding apart a little (pace, do afterward coalefce into one Trunk compofed of two Branches, which being conjoyned, do make the Candex of the Medal/a oblongam, whole whole progrel":~ both beforeand after the union of its (rum, is adorned with divers Appendages, and Protuberan‘cics, and infertions of Vellels, which come out of all Regians, the top and bottom and {ides of this noble Procels, whereupon its Sur- face is rendred uneven with variety of Proceises, and productions of Velsels. Near the Carport: Sm‘am are feared the Tlmlami ner-vomm Optitomm 1*, and are appendant to the Medulla ablangam, where its (rum do make unequa l Prominencies, out of whole little Mounts do arifc the Opticlt Nerves , and from thence bending forward in their circumference, and being carried {omewhat downward, are conioyned about the lower Region of the Met/14114 allotfgdtd, and afterward parting again, do make their pro refs toward the Crime of the Eye, as Dr. Willi: hath well obferved. Andgh ereabouts the Mrs/""4 o'blongam hath its Crunt divided in Man, betwe en which a ltind of {pace or Fifiure may be found, which hath an Aperture bendin g downward toward the Ipfimdilmlum. From the ame Prot'uberancies (from whence the Optick Nerves do derive their Origens) certain Medullary Frocefses do strife, and being carried each lide upon the brim of the {econd Hole, do unite about the Root of on‘ the 6147155411 Pinea/Lr, there Procelses Renowned Dr. Carter conceived to be Nerves relating to the faid Gland; but it is more probable that by there pro- ductions the Optic}; Nerves hold a Mutual correfpondence near their Otis gmations. The Natiform -l- and Teftiform' Frotuberancies +, are endue d with a kind of Orbicular or Oval Figure, and are f0 liyled, becaufe they feem (though in a lefser Model) to refem'ble the [hope of the NM: and Tefier of a Man. Some Thalmi [Vere wrum Opticmrm f T. 43 a l + r. 4 9, F in The rile of the Optic]: Nerves |