. Diseases of the nervous system . oots they divide into two branches (seeabove, the spinal cord roots). The shorter one passes to the nerve-cells nearits point of entrance, while the other descends and gradually becomes smaller, Nucl. n. Ill ^Nucl. n. IVRad. n. IV s Nucl. rad. desc. n. V ^Nucl. mot. n. V >.NucL sen?, n. V^Pars sec. rad. n. VII ^Nucl. n. VIII.^Genu int. n. VII—-Nucl. n. VI-Nucl. n. VIII -Tars prim. rad. n. VII ??*Nucl. n. VII - Nucl. sens. n. IX Nucl. sens. n. X Nucl. n. XIINucl. mot. n. IX et X Nucl. n. XI Tract, Nucl. tr. solit. Rad. asc. n. VRad. post. n. spin.
. Diseases of the nervous system . oots they divide into two branches (seeabove, the spinal cord roots). The shorter one passes to the nerve-cells nearits point of entrance, while the other descends and gradually becomes smaller, Nucl. n. Ill ^Nucl. n. IVRad. n. IV s Nucl. rad. desc. n. V ^Nucl. mot. n. V >.NucL sen?, n. V^Pars sec. rad. n. VII ^Nucl. n. VIII.^Genu int. n. VII—-Nucl. n. VI-Nucl. n. VIII -Tars prim. rad. n. VII ??*Nucl. n. VII - Nucl. sens. n. IX Nucl. sens. n. X Nucl. n. XIINucl. mot. n. IX et X Nucl. n. XI Tract, Nucl. tr. solit. Rad. asc. n. VRad. post. n. spin. ^ Aquacd. Sylvii- Nucl. ruber r Rad. n. Ill s Fascic. longitud. , Brach. pontis Port, major n. VA \/ Port, minor n. V <- Gangl. Gasseri ^Ram. n. trigm. I, II, III ^Rad. n. VII ___- N. interm. Gangl. spirale et rad. n. VIII—Gangl. vestibul. et rad. n. VIII~~~~ Rad. n. VI* Gangl. petros. et rad. n. XI Gangl. jugul. et Rad. sens. n. X Had. mot. n. X% Rad. n. XIIN. XI1 Rad. cerebr. n. XI Rad. spin. n. XIRad. ant. nn. Fig. 73.—The Nuclear Origix of the Cranial Nerves. (After Edinger.) supplying all the cells of the gelatinous substance down into the cervical cord(ascending1 trigeminal root) (Fig-. 73-76). Now there is also an ascending trigeminal root (Figs. 72, To, 96, 97. 98).This is distributed about nerve-cells which may be traced to the middle most frontal position is in the region of the corpora quadrigemina, later-ally from the aqueduct of Sylvius, therefore laterally to the nuclei of theoculomotor and trochlear, and at the same time somewhat toward the the nucleus of the descending trigeminal root extends caudally up tothe lateral borders of the anterior portion of the fourth ventricle where itapproaches the surface and where, by pigmentation of its cells, it becomesvisible as the locus cceruleus (Fig. 78). There it unites with the main nucleusof the trigeminal nerve. i According to the neuron theory, the designationcorrect one. desce
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