33 



ELEMENTAR Y ANA TOMY. 



[LESS. 



palmar fascia may contain a fibre-cartilaginous disc, as in 

 Hyrax. 



The flexor carpi ulnaris of man is normal. It may be 

 greatly more complex and divided into four portions, as in 

 the Two-toed Ant-eater, where the pisiform bone is so large. 



P.t 



F.l.p 



FIG. 298. LONG FLEXOR MUSCLES AND TENDONS OF THE HAND OF 



NYCTICEBUS. 



Pt, pronator teres ; Fs, flexor sublimis digitorum : Fp, flexor profundus digitorum ; 

 Flp, flexor longus pollicis. 



Flexor sublimis digitorum. This muscle in man presents 

 a degree of distinctness which is by no means constant. It 



