Diseases of the nervous system .. . in is somewhat circumscribed, lying ver-tically above the place where the nerve emerges from the pontal fibers. Wefind its nucleus not far below the anterior third of the rhomboid fossa at itslateral border in the region of the locus coeruleus. Xaturally the locus cceru-leus must be divided, i. e., a part of the sensory trigeminal nucleus whichhas been stained l)y pigment, and which during its prolonged course lies lat-erally in the rhomboid fossa, is situated just below the surface. The fiberspass from the motor nucleus without crossing and almost horizonta
Diseases of the nervous system .. . in is somewhat circumscribed, lying ver-tically above the place where the nerve emerges from the pontal fibers. Wefind its nucleus not far below the anterior third of the rhomboid fossa at itslateral border in the region of the locus coeruleus. Xaturally the locus cceru-leus must be divided, i. e., a part of the sensory trigeminal nucleus whichhas been stained l)y pigment, and which during its prolonged course lies lat-erally in the rhomboid fossa, is situated just below the surface. The fiberspass from the motor nucleus without crossing and almost horizontally (a Nucl. n. III-^Nucl. n. IVRarl. n. IV , Nucl. rad. desc. n. V -^^Nucl. mot. n. V ^^Nucl. sens. n. V^,^Pars sec. rad. n. VII ^^Nucl. n. VIII,^^Genu int. n. VII—-Nucl. n. VI-Nucl. n. VIII •Pars prim. rad. n. VII Nucl. n. VII-] Nucl. sens. n. IXNucl. sens. n. X - Nucl. n. XII ^Nucl. root. n. IX et X Nucl. n. XI ^Tract, Nucl. tr. solit.^ Rad. asc. n. V Aqua?d. Sylvii, Nucl;.-ruber ./? Rad. n. III Fascic. Rrach, pontie, Port, major n. VPort, minor n. V^- Gang). Gasseri |^,V>Ram. n. trigm. I. II, III^^.Rad. n. VII,^ N. interm. ^_^^^ Gangl. spirale et rad. n. VIII-- v^^~ Gangl. vestibul. et rad. n. VIII~~^^- Rad. n. VI) Gangl. petros, et rad. n. XI Gangl. jugul. et Rad. sens. n. XRad. mot. n. XRad. n. XIIN. XIRad. cerebr. n. XI Rad. spin. n. XI Rad, ant. nn. spin. Rad. post. n. 49.—Nuclear Origin of the Cerebral Nerves. (After Edinger.) little outwardly) through the pontal fibers at the point where these run tothe cerebellum as its superior peduncles. Its nerve fibers are situated withinthis longitudinal fiber layer through which they pass to those of the sensorytrigeminal roots; thus we see at the base of the brain betAveen the pons andsuperior peduncles a common root emerging from the cerebellum. 56 HISTOLOGY OF THE CENTRAL NERVOUS SYSTEM Close to the motor origin of the fifth nerve, and upon about the sameplane, but extending rather cau
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