. The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds . ot find described in any work at presentavailable to me, and which I here provisionally bestowthis name upon in view of the fact that the flexor carpiidnaris is often split up into several portions in someother vertebrates, and this is more than likely an in-stance of it. And then, again, I was influenced in mydecision from the additional fact that in its action itassumes in part the function of the flexor carpi idnarisin those animals where it does occur normally. Theflexor carpi ulnaris
. The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds . ot find described in any work at presentavailable to me, and which I here provisionally bestowthis name upon in view of the fact that the flexor carpiidnaris is often split up into several portions in someother vertebrates, and this is more than likely an in-stance of it. And then, again, I was influenced in mydecision from the additional fact that in its action itassumes in part the function of the flexor carpi idnarisin those animals where it does occur normally. Theflexor carpi ulnaris brevior in the Raven, however, notonly to a limited extent flexes the hand upon the fore-arm, but by its peculiar carpal insertion rotates the handtowards the side of the body—a very important actionduring flight. This muscle arises from quite a broad area coveringthe middle third of the upper side of the shaft of the 1 From Gadows account (foe. cit., p. 272) I would say that thismuscle was represented by his No. 86. M. ULNI-METACARPALIS VEN-TRALIS—the adductor metacarpi of Schopss and of ao 00 a I 60 a o •s -I 8- .2 a o , FH(- O .S-qo *> 2 <? r*H Q3j_j ^™r ^ .a a 03 < g su -*C3 146 THE MYOLOGY OF THE RAVEN. ulna (Fig. 37), being found immediately beneath theflexor digitorum profimdus, or rather the anterior por-tion of its muscular division, and the posterior third ofthe tendon that comes off from it. The cameous portionof the flexor carpi ulnaris brevior is entirely attachedto the ulna, while its exposed surface is covered by aglistening, tendinous fascia. This merges, anteriorly,into its true tendon, which passes from the apex of themuscle directly to the carpus, well above the ulnasshaft. At the carpus it winds around in front of theradiale bone, from the ulnar side, to become insertedupon the outer edge, near the top, of the anchylosed osmagnum of the carpo-metacarpus. This anterior portionof the tendon is firmly held in its position by a strongf
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