. Anatomy of the woodchuck (Marmota monax). Woodchuck; Mammals. 34 Anatomy of the Woodchuck, Marmota monax. Fig. 2-36. Left forepaw, palmar view. I-V = metacarpals, 1-5 = digits. 1 radius, 2 intermedioradial carpal bone (sca- pholunatum), 3 radial sesamoid, 4 proximal phalanx of sec- ond digit, 5 middle phalanx of second digit, 6 distal pha- lanx of second digit, 7 flexor tubercle, 8 distal sesamoid, 9 proximal sesamoid, 10 accessory carpal bone (pisiform), 11 ulnar carpal bone (triquetrum), 12 ulna. The pubic bone forms the cranial and medial borders of the obturator foramen, foramen obtura-
. Anatomy of the woodchuck (Marmota monax). Woodchuck; Mammals. 34 Anatomy of the Woodchuck, Marmota monax. Fig. 2-36. Left forepaw, palmar view. I-V = metacarpals, 1-5 = digits. 1 radius, 2 intermedioradial carpal bone (sca- pholunatum), 3 radial sesamoid, 4 proximal phalanx of sec- ond digit, 5 middle phalanx of second digit, 6 distal pha- lanx of second digit, 7 flexor tubercle, 8 distal sesamoid, 9 proximal sesamoid, 10 accessory carpal bone (pisiform), 11 ulnar carpal bone (triquetrum), 12 ulna. The pubic bone forms the cranial and medial borders of the obturator foramen, foramen obtura- tum. The ischium, os ischii, forms the caudal part of the os coxa, and consists of a body and a ramus. It forms the caudal and lateral borders of the obtu- rator foramen. The body of the ischium, corpus ossis ischii, fuses with the ilium, acetabular bone and pu- bis at the acetabulum. It has a low ischiatic spine, spina ischiadica, and caudal to that a lesser ischiatic notch, incisura ischiadica minor, for the tendon of the internal obturator muscle. The caudal, flattened part of the ischium forms the tabula, tabula ossis ischii. The latter bears the ischial tuberosity, tuber ischiadicum, for the attachment of the caudal thigh muscles. The ischial ramus, ramus ossis ischii, pro- jects ventromedially from the caudal part of ischial body and fuses with the caudal branch of the pubic. 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
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