. Anatomy of the woodchuck (Marmota monax). Woodchuck; Mammals. 146 Anatomy of the Woodenuck, Marmota monax. Fig. 10-1. Brain, dorsal view. 1 olfactory bulb, 2 median fissure, 3 pseudosylvian fissure, 4 transverse fissure, 5 met- encephalon (cerebellum), 6 myelencephalon, 7 vermis, 8 paraflocculus, 9 cerebellar hemisphere, 10 cerebrum. Meier (1983) studied the relative brain size with- in American sciurids, and Doetsh and Towe (1981) reported on the pyramidal tracts. The woodchuck's brain is approximately 45 mm long, 30 mm wide and 20 mm thick. It weighs approximately 11 grams. Viewed from abo
. Anatomy of the woodchuck (Marmota monax). Woodchuck; Mammals. 146 Anatomy of the Woodenuck, Marmota monax. Fig. 10-1. Brain, dorsal view. 1 olfactory bulb, 2 median fissure, 3 pseudosylvian fissure, 4 transverse fissure, 5 met- encephalon (cerebellum), 6 myelencephalon, 7 vermis, 8 paraflocculus, 9 cerebellar hemisphere, 10 cerebrum. Meier (1983) studied the relative brain size with- in American sciurids, and Doetsh and Towe (1981) reported on the pyramidal tracts. The woodchuck's brain is approximately 45 mm long, 30 mm wide and 20 mm thick. It weighs approximately 11 grams. Viewed from above (Fig. 10-1) it has an almost triangular, smooth, forebrain rostrally and a cor- rugated cerebellum caudally. The olfactory bulbs project 10 mm beyond the rostral border of the cerebral hemispheres and caudally the myelenceph- alon projects 5 mm beyond the caudal border of the cerebellum. The paraflocculi of the cerebellum are about 5 mm long and 5 mm wide and project laterally from the cerebellar hemispheres. The two cerebral hemispheres are separated from each other by the longitudinal fissure, fissura lon- gitudinalis cerebri, which contains the falx cerebri and from the cerebellum by the transverse fissure, fissura transversa cerebri, which contains the tento- rium cerebelli membranaceum. Viewed laterally (Fig. 10-2), the cerebrum is somewhat wedge-shaped, with the widest part cau- dally. The olfactory peduncle, pedunculus olfacto- rius, lateral olfactory tract, tractus olfactorius later- alis, and piriform lobe, lobus piriformis, are. 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 Bezuidenhout, A. J. (Abraham Johannes), 1942-; Evans, Howard E. (Howard Edward), 1922-. Lawrence, KS : American Society of Mammalogists
Size: 1254px × 1993px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcollectionbiodiversity, bookleafnumber15, booksubjectmammals
