THE MUSCLES OF THE UPPER EXTREMITY. 141 



sheath, which it passes through to finally insert itself 

 into the ulnar side of the base of the distal joint of the 

 index finger. 



Mivart says that "the, flexor profwidus digitorum in 

 man possesses an exceptional distinctness and subdivi- 

 sion. As has been said, it may be intimately united 

 with the sublimis, as it may also be (even in Monkeys) 

 with the flexor longus pollicis. When distinct from the 

 latter, it may yet send a tendon to the thumb, as in 

 Nycticebus. It may end in but one, or at most two tendons, 

 as in birds. In the complete separation of this muscle 

 from the one next mentioned [flexor longus pollicis] 

 man differs from all the Apes" (Elem. Anat., p. 332). 



83. The flexor carpi ulnaris 1 is an exceedingly in- 

 teresting muscle, and is the one that makes up the 

 fleshy mass on the under side of the forearm for its 

 posterior moiety. On the ulnar side of the olecranon 

 process of the larger bone of the antibrachium we find a 



1 " 85. M. FLEXOR CARPI ULNARIS S. ENTEPICONDYLO-CARPALIS. 



Le ctibital interne. Vicq d'Azyr, 1773, p. 573, No. 6. 



Cuvier. 



Ausdelmer des Arms + llegierer der Armfedern. Merrem, p. 155, 



No. 6 und 7. 



Langer Elleiibogenbeuger. Wiedemann, p. 22. 

 Flexor carpi ulnaris. Tiedemann, 272. 



,, ,, ,, Heusinger, p. 189, No. 26. 



Selenka, p. 133, No. 64. 

 ,, Riidinger, p. 158. 



,, Watson, p. 93 ; Carlsson, p. 29. 



Innerer Elleiibogenmuskel. Meckel, p. 336, No. 6. 

 Langer Beuger der Handwurzel + M. rector remigum secundi 



ordinis. Schopss, p. 154, No. 35, und p. 88, No. 4. 

 Antagonist des langer Mittelhandstreckers. Prechtl, p. 54. 

 Cubital anterieur. Gervais et Alix, p. 29. 



Metacarpien palmaire interne. Alix, p. 412, pi. II., fig. 2, No. 15, 

 16, 17." (From Gadow, Bronn's Thier-Reiclis, vi. Band, p. 270.) 



