MTSrj.ES Or THK ANTKKIOK EXTKKMITY. 



85 



59. M.jlexor diijitorum commit n't* (Figs. 75, /6, 77 Fd). 



Duges, epitrochlo-sous-phalangettien, n. 118. 



This muscle lies most internally, and corresponds to the m. f 

 diijitorvrit -SV/M////A' of man. It arises in common with the foregoing 

 muscle from the epicomlylm mcdialis, and runs downwards to the 

 palm of the hand. At its entrance into this it diminishes and 

 passes into the flat aponeufotu paimarit. (See hand, B.) 



60. J/. flexor antibrachii medialis (Ecker), (Fig. 75 Fa). 



Duges, epitrochlo-sous-radial, n. 79. (Frequently described as the pro- 

 itntor rotundus, a description which cannot be retained, as the implied 

 movement does not occur in the frog. Ecker.) 



This muscle lies deeply on the inner side of the forearm, covered 

 by the^ftroref carpi; it arises tendinously from the epicottdylxi Me- 

 dia? is and is inserted into the inner surface of the radial side of the 

 radio-ulnar as far as the inferior articular extremity. 



61. J/. flexor antilrachii laterally st>- 

 jjerjiciafi* (Ecker), (Figs. 74, 75 Fa'). 



Duges. premier ex- huinero- radial, u. 76. 



Usually described as stipiiiator longn*. 



this, for reasons similar to those in the 



case of i. flexw antibi'achil medinlix. 



cannot be retained.) 



The situation of this muscle corresponds 

 with that of the *uj)inafor lonfju.s of man ; 

 it lies to the outer side of the tendon of 

 the 'n>. xtri-noradit.il.ix. and arises l>y two 

 heads, the one, above from the outer edge 

 of the humerus, the other deeper from the 

 ej>i?f>m1i/h!* lateral is. They unite and pass 

 into a tendon which, running over the 

 lower articular extremity of the radio- 

 ulnar, is partly attached to the carpus and 

 partly connected with the tendon of the 

 in. extensor digitill propri** longnt. From 

 its position and insertion, this muscle 

 evidently flexes the forearm and extends 

 the hand. 



Fc 



PC' 



Muscles of the right arm of Raita 

 etculenta, deep layer. 



ed Extensor digit, communis. 

 Fa Flexor antibrachii medialid. 

 Fa' Flexor antibrachii lat. super 



ficialis. 



Fa" Flexor antibr. lat. profnndu*. 

 Ft Flexor carpi radialis. 

 Fc' Flexor carpi ulnaris. 

 Fd Flexor digitorum communis. 



62. M.ile-.i-or aiitibracJiii laterafoprefimdiu (Ecker), (Fig. 75 Fa"). 



Duges, epicondylo-sus-radial, n. 78 Klein, flexor aniibrnchit. (Su- 



pinat. bi'ei'i* autt.) 



This muscle arises under cover of the foregoing, from the epicon- 

 ffi<# lateraJ.i* of the outer surface of the humerus. it becomes 



