ANATOMICAL STRUCTUIIE OF ANTHROPOID APES. 169 



and in this act of extension it is supported by the 

 long extensor which acts upon the phalanges. It 



Fig. 52. — Palmar muBcles of gorilla, o. Anterior ligament. 6, Remains of the 

 skin of palm, here covered with a very sinewy skin, c,/, Oblique fibres ot 

 the ligaments of the sheath of the flexor tendons of lingers. 1, 2, FieKor 

 tendons. 3, Spaces Ijetween the heads of the flexor brevis polUcis, whence 

 in man the tendon of the flexor longus poUicis issues (comp. Fig. 51, 5). 

 4, 3, 3', 5, Abductor, flexor brevi?, abductor pollicis. 6, 1, 8, Opponens, flexor 

 brevis, abductor, minimi dlgiti. 9, Dumbricales. 10, Supinator lonRUS. 12, 

 Flexor sublimis dlgitorum. 13, Flexor minimi digitl. 14, Flexor carpi ulnarls. 



