. The anatomy of the domestic animals. Veterinary anatomy. 836 THE NERVOUS SYSTEM OF THE OX by a plexus of vessels. It is much narrower and thicker than that of the horse. The infiindibulum is relatively long and slopes dowiiward and backward. The cerebral hemispheres are shorter, higher, and relatively wider than in the horse. The frontal poles are small, the occipital, large. The length from pole to pole is about the same as the greatest transverse diameter of the two hemispheres. Longitudinal fissure. Fig. 663.—Base of Brain of Ox. 1, Olfactory bulb; S, S', olfactory striEe; 3, trigonum olf
. The anatomy of the domestic animals. Veterinary anatomy. 836 THE NERVOUS SYSTEM OF THE OX by a plexus of vessels. It is much narrower and thicker than that of the horse. The infiindibulum is relatively long and slopes dowiiward and backward. The cerebral hemispheres are shorter, higher, and relatively wider than in the horse. The frontal poles are small, the occipital, large. The length from pole to pole is about the same as the greatest transverse diameter of the two hemispheres. Longitudinal fissure. Fig. 663.—Base of Brain of Ox. 1, Olfactory bulb; S, S', olfactory striEe; 3, trigonum olfactorium; 4i foaaa lateralis; S. piriform lobe; 6, optic chiasma; 7, optic tract; 8, tuber cinereum; 5, cerebral peduncle; 10, pons; II, corpus trapezoideum; 12, pyramid: 13, cerebellum; 14, chorioid plexus of fourth ventricle; , first cervical nerve roots. The stumps of the cranial nerves are designated by Roman numerals. The hypophysis has been removed and its contour is indicated by dotted line. The central black area is the infundibular recess of the third ventricle opened up when the infundibulum is torn off. Viewed from the side, the dorsal surface is strongly convex. The highest point of the dorso-medial border is a little in front of its middle and forms a marked promi- nence termed the sagittal or marginal pole (Polus sagittalis s. prominentia mar- ginalis dorsalis). Anterior to this the Ijorder drops abruptly, being cut into by the deep transverse fissure. The arachnoid on the basal and anterior parts of the hemispheres is usually pigmented. The corpus callosxmi extends through a little. 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 Sisson, Septimus, 1865-1924. Philadelphia, London, W. B. Saunders Company
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