. A junior course of practical zoology. Zoology. THE BEAIN 353 The cerebellum is a large transversely elongated mass, lying behind the hemispheres. It is divided into a large median lobe, the vermis, and two lateral lobes, to the outer sides of which are the small roimded floccular lobes. The whole surface of the cerebellum is marked by close-set folds, mainly transverse in direction. The medulla oblongata is the part of the brain beneath and behind the cerebellum. It is some-. FiQ. 61.—^LepuB cuniculus. A longitudinal and vertical section of the brain, taken in the median plane, (a. m. m.) A,
. A junior course of practical zoology. Zoology. THE BEAIN 353 The cerebellum is a large transversely elongated mass, lying behind the hemispheres. It is divided into a large median lobe, the vermis, and two lateral lobes, to the outer sides of which are the small roimded floccular lobes. The whole surface of the cerebellum is marked by close-set folds, mainly transverse in direction. The medulla oblongata is the part of the brain beneath and behind the cerebellum. It is some-. FiQ. 61.—^LepuB cuniculus. A longitudinal and vertical section of the brain, taken in the median plane, (a. m. m.) A, pituitary body. AC, anterior commissure. AP, anterior pillar of the fornix, seen in the wall of the third ventricle. C, cerebellum. CA, corpus albicans. CC, corpus callosum. CH, inner surface of left cerebral hemisphere. £*, body of the fornix. FM, foramen of Monro. G-, yelum interpositum. 1, infundibulum. MG, middle commissure. IN*, anterior lobe of corpora quadrigemina, or'nates.' O, olfactory lobe. OC, optic chiasma. OW, left optic nerve. P, pineal body. PG, posterior commissure. PV, pons Varolii. T, posterior lobe of corpora quadrigemina, or 'testis.' VA, velum medullee anterius, or valve of Vieusaens. "VP, velum meduUae postertus. Ill, third ventricle. IV, fourth ventricle. V, fifth ventricle. what flattened dorso-ventrally, is widest in front, and gradually narrows behind, passing into the spinal cord. i. The velum meduILse anterius, or valve of Vieussens, is a thin transparent membrane, A A. 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 Marshall, A. Milnes (Arthur Milnes), 1852-1893; Hurst, C. Herbert (Charles Herbert), 1856?-1898, joint author. London, Smith, Elder
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1888
