File:Anatomy of the cat (1991) (18007881909).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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Text Appearing Before Image:
MUSCLES OF THE THORACIC LIMBS. 177 Origin (Fig. 86, f) by short, fleshy fibres fi-om the lateral surface of the uhia between the semilunar notch and the junc- tion of the third and fourth (distal) fourths. The muscle-fibres pass obliquely distad and toward the radial side and join the tendon (T^ig. 85, c'), which runs nearly the whole length of the radial surface. Insertion (Fig. 84, c).—The tendon passes through the groove on the ulnar side of the dorsal surface of the base of the radius and divides into two. Both of these usually go to the base of the second phalanx of the second digit, but one may pass to the pollex, or there may be three divisions going to the first three digits.
Text Appearing After Image:
I'K;. 85.—Deei" Muscles on the Extensor Surface of the Radius AND Ulna. (7, M. extensor brevis )iollicis ((/, its tendon); /', M. supinator; <", M. extensor in- dicis (r', its tendon); r/, tendon of M. extensor carpi radialis brevis; l\ tendon of M. extensor carjii radialis longus. I, lunnerus; 2, olecranon; 3, styloid process of ulna; 4, distal end of radius; 5, head of radius. Relations.—Outer surface with the integument, the extensor carpi ulnaris (I'ig. 75, o'), and the extensor digitorum lateralis (Fig. 75, 11). Dorsal border with the flexor profundus digi- torum (Fig. 75, q). Inner surface with the extensor brevis pollicis (Fig. 85, a). Action as indicated by the name. M. supinator (Fig. 85, /;).—A flat muscle wrapped spirally about the proximal end of the radius. Origi)i by a short, strong tendon from the lateral side of the annular ligament of the radius and by tendinous fibres from the radial collateral ligament passing from the humerus to the radius. From the tendon of origin the fibres diverge, passing toward the radial side and distad. hisertion (Fig. 86, g).—The dorsal and part of the ventral surface of the proximal two-fifths of the radius to within

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