. Elements of zoölogy : a textbook. Zoology. NEKVOUS SYSTEM. FIG. 66. A 61. Brain or principal portion of the cerebro-spinal system of a Rabbit. Upper surface on the right, lower on the left. A, olfactive lobes; B, cerebral hemispheres; D, cerebellum; ol, olfactive lobes; op, optic nerve; TOO, motor oculi; cm, corpora mamillaria; cc, crus cerebri; pv, pons va- rolii; pa, patheticus; tri, trifacial; ab, abducens; fuc, facial; au, auditory; vag, vagus; «, spinal accessory; hyp, hypoglossal. viscera. The nerves of this system extend to the vital organs, as the stomach, heart, lungs," liver,
. Elements of zoölogy : a textbook. Zoology. NEKVOUS SYSTEM. FIG. 66. A 61. Brain or principal portion of the cerebro-spinal system of a Rabbit. Upper surface on the right, lower on the left. A, olfactive lobes; B, cerebral hemispheres; D, cerebellum; ol, olfactive lobes; op, optic nerve; TOO, motor oculi; cm, corpora mamillaria; cc, crus cerebri; pv, pons va- rolii; pa, patheticus; tri, trifacial; ab, abducens; fuc, facial; au, auditory; vag, vagus; «, spinal accessory; hyp, hypoglossal. viscera. The nerves of this system extend to the vital organs, as the stomach, heart, lungs," liver, intestines, etc. The nerves originating in the cerebro-spinal system of the highest mammal, namely, Man, amount to forty-three pairs—twelve pairs arising within the cranium, and leaving that cavity by apertures in the cranial bones, and thirty-one pairs arising from the spinal cord, and leaving by apertures situated between the vertebratae. Each of these pairs is composed of a great number of extremely fine threads or fibers inclosed in a sheath. At their origin, the fibers which make up the nerve are called roots, and, in the case of the spinal nerves, are grouped into anterior and posterior roots. On the posterior root there is a gan- glion through which the filaments pass and after that unite with the anterior root. The brain itself is insensible, not feeling even when ir- ritated or cut; but it is nevertheless the seat of sensation,. 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 Tenney, Sanborn, 1827-1877. New York : Scribner
Size: 1254px × 1993px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthortenn, bookpublishernewyorkscribner, booksubjectzoology
