File:Anatomy of the cat (1991) (17571480664).jpg

Title: Anatomy of the cat
Identifier: anatomyofcatrje00reig (find matches)
Year: 1991 (1990s)
Authors: Reighard, Jacob Ellsworth, 1861-1942; Jennings, H. S. (Herbert Spencer), 1868-1947
Subjects: Cats; Mammals
Publisher: (Austin, TX) : BookLab, Inc.
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: Biodiversity Heritage Library

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MUSCLES OF THE THOR/iClC LIMBS. 175 through the groove on the middle of the dorsal surface of the distal end of the radius. The groove is converted into a canal by a strong transverse ligament. The tendon divides near the groove into four portions (Fig. 84, a) which diverge and pass to the four ulnar digits. Insertions. — Each division of the tendon as it passes over the dorsal sur- face of the first phalanx has its border connected by strong fascia to the dorsal surface of the phalanx. It finally passes through the groove at the distal end of the first phalanx and is inserted mostly into the base of the second phalanx; a portion continues distad to be inserted into the third phalanx. Relations.—Outer surface with the integument and at the origin with the caput laterale (Fig. 75, //) of the triceps. Radial surface with the extensor longus (/) and extensor brevis. Ulnar surface with the extensor digitorum lateralis (11). Inner surface with the supinator (Fig. 85, li) a'nd the extensor poUicis brevis (Fig. 85, a). ^ Action.—Extensor of the four ulnar digits. M. extensor digitorum lateralis (Fig. 75,;/). (This corresponds in posi-'"-'^■^ ^I'S'torum; c. . ...... . sor indicis; </, M
Text Appearing After Image:
Fig. 84.—Arrangement of THE Tendons on the Back of the Hand. (I, M. extensor communis digitorum; h, M. extensor late- M. exten- ^..,, -, M. extensor tion to the extensor digiti qumti proprms brevis poliicis; e, M. extensor of man "I carpi radialis longus; /", M. '•'_ _ extensor carpi radialis brevis; Ol'igin (Fig. 81, «) from the lateral g, M. extensor carpi ulnaris; supracondyloid ridge of the humerus i'; ;rs".'r'ligle«T.he distad of the origin of the extensor ^'r'st- communis. The muscle passes along the ulnar border and dorsal surface of the forearm between the extensor communis (Fig. 75, ;;/)and the extensor carpi ulnaris (^?). Near the carpus it ends in a tendon

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