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Dorsal or posterior view of the medulla, fourth ventricle, and mesencephalon. Labels: p.n., line of the posterior roots of the spinal nerves; p.m.f., posterior median fissure; f.g., funiculus gracilis; cl., its clava; f.c., funiculus cuneatus; f.R., funiculus of Rolando; r.b., restiform body; c.s., calamus scriptorius; l, section of ligula or taenia; part of choroid plexus is seen beneath t; l.r., lateral recess of the ventricle; str., striae acusticae; i.f., inferior fossa; s.f., posterior fossa; between it and the median sulcus is the fasciculus teres; cbl., cut surface of the cerebellar hemisphere; nd., central or gray matter; s.m.v., superior medullary velum; lng., ligula; s.c.p., superior cerebellar peduncle cut longitudinally; cr., combined section of the three cerebellar peduncles; c.q.s., c.q.i., corpora quadrigemina (superior and inferior); fr., fraenulum; f; f., fibers of the fillet seen on the surface of the tegmentum; c, crusti; l.g., lateral groove; c.g.i, corpus geniculum internus; th., posterior part of the thalamus; p., pineal body. The Roman numbers indicate the corresponding cranial nerves.

Medulla

Dorsal or posterior view of the medulla, fourth ventricle, and mesencephalon. Labels: p.n., line of…

Ventral or anterior surface of the pons Varolii, and medulla oblongata. Labels: a, anterior pyramids; b, their decussation; c, olivary bodies; d, restiform bodies; e, arciform fibers; f, fibers passing from the anterior column of the cord to the cerebellum; g, anterior column of the spinal cord; h, lateral column; p, pons Varolii; i, its upper fibers; 5, roots of the fifth pair of nerves.

Anterior Surface of the Pons Varolii and Medulla Oblongata

Ventral or anterior surface of the pons Varolii, and medulla oblongata. Labels: a, anterior pyramids;…

Dorsal or posterior surface of the pons Varolii, corpus quadrigemina, and medulla oblongata. The peduncles of the cerebellum are cut shot at the side. Labels: a, the upper pair of corpora quadrigemina; b, the lower; f, superior peduncles of the cerebellum; c, eminence connected with the nucleus of the hypoglossal nerve; e, that of the glosso-pharyngeal nerve; i, that of the vagus nerve; d, restiform bodies; p, posterior pyramids; v, groove in the middle of the fourth ventricle ending below in the calamus scriptorius; 7, roots of the auditory nerve.

Dorsal Surface of the Pons Varolii

Dorsal or posterior surface of the pons Varolii, corpus quadrigemina, and medulla oblongata. The peduncles…