. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Base of the brain of the male Agouti. (After Serres.) p, pons Varolii; h, lobe of the hippocampus; g,f, lateral portion of cerebral hemisphere; k, anterior part of the lobe of the hippocampus; e, olfactory lobe; u, infundibulum. The nerves are indicated by corresponding numbers. markable, the anterior pair (nates) are of a roundish form, and much larger than the pos-. Interlor of the brain of the same animal. (After Serres.) a, medulla spinalis; b, restiform body; c, arbor vitse cerebelli; 1, 2, 3, 4, 5, 6, ramifications
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Base of the brain of the male Agouti. (After Serres.) p, pons Varolii; h, lobe of the hippocampus; g,f, lateral portion of cerebral hemisphere; k, anterior part of the lobe of the hippocampus; e, olfactory lobe; u, infundibulum. The nerves are indicated by corresponding numbers. markable, the anterior pair (nates) are of a roundish form, and much larger than the pos-. Interlor of the brain of the same animal. (After Serres.) a, medulla spinalis; b, restiform body; c, arbor vitse cerebelli; 1, 2, 3, 4, 5, 6, ramifications of ditto ; d, superior peduncle of the cerebellum; 7, nervus patheticus; 8, posterior quadrigeminal tubercle; 9, anterior quadrigeminal tubercle; 11, optic tract; 12, posterior pillar of the fornix ; 13, corpus stria- turn ; n, corpus callosum; i,f,g, horizontal section of the hemisphere on a level with ditto; /, m, lateral portion of the cerebral hemisphere. The structure of the kidneys, and the gene- ral disposition of the urinary apparatus afford nothing deserving particular description. Male organs of generation. — The Rodentia are amongst the most prolific of all quadru- peds ; a circumstance which may, perhaps, account for the extraordinary development of the appendages to the male generative system, which are met with throughout the order. It is, indeed, difficult to identify the precise ana- logies of some of the accessory genital organs, which are much more complex in structure than those of other Vertebrata. In the greater number of Rodents, as for instance in the rats, the Guinea-pigs, the agoutis, the porcupines, the beaver, the onda- tra, and the squirrels, the testicles are not contained in a scrotum, but during the season of impregnation are lodged beneath the skin of the perineum, which is tightly stretched over them. In the hares, however, two dis- tinct scrotal pouches exist (fig. 281. k, I), situated in the vicinity of the anus, in which. Please note that
Size: 1251px × 1996px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, booksubjectanatomy, booksubjectphysiology, booksubjectzoology
