. A compend of human physiology; especially adapted for the use of medical students. Physiology. 198 HUMAN PHYSIOLOGY. bundle decussates at the median line and joins the opposite anterior pyra- mid ; a middle bundle ascends beneath the olivary body, behind the pons, to the cerebrum, as the fasciculus teres. The olivary body of each side is an oval mass, situated between the anterior pyramid and restiform body; it is composed of white matter externally and gray matter inter- nally, forming the corpus Fig. 23.—View of Cerebellum in Section, and of Fourth Ventricle, with the Neighborin
. A compend of human physiology; especially adapted for the use of medical students. Physiology. 198 HUMAN PHYSIOLOGY. bundle decussates at the median line and joins the opposite anterior pyra- mid ; a middle bundle ascends beneath the olivary body, behind the pons, to the cerebrum, as the fasciculus teres. The olivary body of each side is an oval mass, situated between the anterior pyramid and restiform body; it is composed of white matter externally and gray matter inter- nally, forming the corpus Fig. 23.—View of Cerebellum in Section, and of Fourth Ventricle, with the Neighboring Parts.—{From Sappey.) 1. Median groove fourth ventricle, ending below in the calamus scriptorius, with the longitudinal eminences formed by the fasciculi teretes, one on each side. 2. The same groove, at the place where the white streaks of the auditory nerve emerge from it to cross the floor of the ventricle. 3. Inferior peduncle of the cerebellum, formed by the restiform body. 4. Posterior pyramid; above this is the calamus scriptorius. 5, 5. Superior peduncle of cerebellum, or processus e cerebello ad testes. 6. 6. Fillet to the side of the crura cerebri. 7, 7. Lateral grooves of the crura cerebri. 8. Corpora quadrigemina. {After Hirschfeld and Leveille.') 3. The restiform body, continuous with the posterior column of the cord, also receives fibers from the lateral column. As the restiform bodies pass upward they diverge and form a space (the fourth ventricle), the floor of which is formed by gray matter, and then turn backward and enter the cerebellum. 4. The posterior pyramid is a narrow white cord bordering the posterior median fissure ; it is continued upward, in connection with the fasciculus teres, to the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Brubaker, Albert P. (Albert Ph
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