336 



THE MUSCLES 



arit^e have been retracterl, whereas the origins of the interossei are practically fixed. 

 The first and second lunii)ricales will act feel)ly as abdiuttors of the index and middle 

 fingers; the third and fourth as adductors of the ring and little fingers. They will 

 also have some influence, together with the interossei, upon the aponeuroses of the 

 extensor communis digitorum tendons in binding them down upon the first 



Fig. 280. — The Superficial Muscles, of the Falsi of the Hand. 



Flexor carpi radialis 



carpi ulnaris 



Deep fascia of 

 forearm 



£xteusor ossis metacarpi poUicis 



Opponeus pollicis 



Abductor pollicis 



Flexor brevis pollicis 



Adductor pollicis 



First lum- 



First dorsal 

 interos- 

 seous 



Flexor profundus digitorum 



Flexor profundus 

 digitorum 



phalanges. In this way they perform for the dorsal tendon a similar func-tion 

 to that which is exercised by the ligamentum vaginale U}><)n the two ])almar 

 tendons. 



Relations. — Superficially, the tendons of the flexor sublimis digitorum and 

 the superficial transverse ligaments; deeply, the interossei muscles, the adductor 



