. Anatomy of the woodchuck (Marmota monax). Woodchuck; Mammals. *s I ! ^™^to Fig. 4-11. Left manus, middle palmar view. 1 radius, 2 tendon of superficial digital flexor m., 3 short flexor m. of first digit, 4 abductor m. of first digit, 5 flexor m. of second digit, 6 abductor m. of second digit, 7 manicum flexorium, 8 palmar annular ligament, 9 proximal digital annular liga- ment, 10 distal digital annular ligament, 1 1 insertions of superficial digital flexor m. tendon, 12 insertion of the deep flexor m. tendon, 13 lumbricales mm., 14 abductor m. of the fifth digit, 15 flexor m. of the fifth
. Anatomy of the woodchuck (Marmota monax). Woodchuck; Mammals. *s I ! ^™^to Fig. 4-11. Left manus, middle palmar view. 1 radius, 2 tendon of superficial digital flexor m., 3 short flexor m. of first digit, 4 abductor m. of first digit, 5 flexor m. of second digit, 6 abductor m. of second digit, 7 manicum flexorium, 8 palmar annular ligament, 9 proximal digital annular liga- ment, 10 distal digital annular ligament, 1 1 insertions of superficial digital flexor m. tendon, 12 insertion of the deep flexor m. tendon, 13 lumbricales mm., 14 abductor m. of the fifth digit, 15 flexor m. of the fifth digit, 16 accessory carpal bone, 17 ulna. Action: Flexion of the metacarpophalangeal joint. Innervation: N. ulnaris. The four interosseus muscles, mm. interossei (Figs. 4-10 and 4-12), form the bulk of the muscle mass on the palmar surface of the manus. Each of the four muscles divides distally to insert on the proximal sesamoid bone. Some authors, including Bryant, 1945, regard them as separate muscles, giv- ing a total of eight interosseus muscles. Origin: Proximal ends of metacarpals II— 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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