416 



Arteries of the Arm. 



^I. flexor digitoruin'subliinis 



M. palinaris loagus - 

 M. flexor carpi radialis 



A. radialis 



Ramus volaris superflcialls 



M. abductor pollicis brevis 



Ligamentum carpi 

 transversum 



M. flexor pollicis brevi: 



M. flexor cai7>i ulnaris 

 Ligamentum carpi volare 



Os pislforme 

 _ A. ulnaris 



Kamus volaris profundus 

 il. palmaris brevis 



cus volaris 

 uperficialis 



iVa. digitales 



volares 

 communes 



Aa. metacarpeae 

 volares II IV 



Aa. digitales 

 __ volares 

 propriae 



459. Arteries 



of the right 



palm 



superficial layer. 



(The aponeurosis palmaris 

 has been removed. 



The arcus volaris super- 

 flcialls (0. T. superficial 

 palmar arch) lies just beneath 

 the aponeurosis palmaris 



upon the tendons of the "***" 



m. flexor digitorum sublimis ; its convexity is dircct^^d distalward. It is formed chiefly by the 

 termination of the a. ulnaris. which unites usually with the delicate ramus volaris superflcialls 

 of the a. radialis. It gives off small branches to the surrounding muscles and skin as well as 

 three aa. dif/itales volares communes (0. T. palmar digital arteries), which extend distalward 

 upon Ihe 2nd 4**1 m. lumbricalis, receive the aa. metacarpeae volares II IV (see also Fig. 460) 

 and divide at the metacarpophalangeal joints, each into two aa. dif/itales volares propriae 

 (0. T. collateral digital arteries) for the adjacent surfaces of the 2"d 5th finger. 



