A text-book of the diseases of the ear and adjacent organs (1894) (14781752195)

Identifier: adjacendis00poli (find matches)
Title: A text-book of the diseases of the ear and adjacent organs
Year: 1894 (1890s)
Authors: Politzer, Adam, 1835-1920 Dodd, Oscar Dalby, William B. (William Bartlett), Sir, 1840-1918
Subjects: Ear Diseases
Publisher: Philadelphia : Lea Brothers & Co.
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: Open Knowledge Commons and Yale University, Cushing/Whitney Medical Library



Text Appearing Before Image:
er and upper as thevestibular nerve (comp. the accompanying diagram by Freud, Fig. 313). Thecochlear nerve arises from the anterior nucleus (FivT). and in a small portionof gray substance which surrounds the dorsal and external of these nuclei, thetuberculuni acusticum (T.ac). Its central continuation is well known, andhas been followed for a long distance. From the median side of the nucleus(i-X) proceeds a large transverse bundle, the corpus trapezoides (Ctrp), whichin animals lies free in front of the fibres of the pons, but in men, however, is ORIGIN AND CONTINUATION OF THE AUDITORY NERVE. 603 covered by then1. The greatest portion of it crosses the middle line and endsin the folded gray mass of the superior olivary body on the opposite side (oO),while a smaller portion ends directly in the superior olivary body of the sameside. Both corpora trapezoid, form a beautiful decussation in the raphe (i?).The superior olivary body, an important reflex ganglion of the auditorv nerve, :EiK
Text Appearing After Image:
2 N.v Fig. 313.—Diagram of the Origin of the Auditory Nerve by S. Freud.B, B\ Raphe ; DK, DK, Nucleus in the roof of the fourth ventricle; rl; Anteriorauditory nucleus ; ik, Inner auditory nucleus ; XD, Deiterss nucleus : T.ac, Tuber-culum acusticum ; oO, oO, Superior olivary body ; ab, Nucleus of the abducens ;1H, Nucleus of the posterior corpora quadrigemina ; Xc, Cochlear nerve ; Xv,Vestibular nerve ; Ctrp, Corpus trapezoides : :A\ Fibres from the inner auditorynucleus to the raphe ; zD, Connections between the inner auditory nucleus andthe nucleus in the roof of the fourth ventricle ; zB, Fibres from the tuberculomacust. to the raphe and to the lateral lemniscus of the other side ; Cb, Fibres fromthe superior olivary body to the cerebellum ; z3I, Fibres from the superior olivarybody to the spinal cord ; ab, Fibres from the superior olivary body to the nucleusof the abducens ; LS, Lateral lemniscus. now forms further connections of the course of the auditory nerve. Fromeach super