50 



TOPOGRAPHICAL ANATOMY OF 



the tensor of the antibraehial fascia the artery meets the ulnar nerve 

 and the two travel down the forearm in close company. 



The collateral ulnar artery furnishes branches to the adjacent 

 muscles, the elbow joint and the skin, and ends by joining the lateral 



M. extensor carpi radialis.,. 



Jf. cutaneus anti- 



brachii lateralis. 



V. cephalica 



accessoria. 



Radius. 



V. cephalica 

 antibrachii. 



A. mediana. 

 X. medianns. 



V. ine<liana. 



SI. flexor carpi 

 radialis. 



M. flexor carpi ulnaris 



A. collateralis radialis. 



M. extensor digitorum 

 communis. 



= N. radialis. 



= Ulna. 



M. extensor digiti 

 quinti. 



M. extensor carpi 

 ulnaris. 



M.lflexor digitorum 

 profundus (caput 

 humerale). 



_ M. flexor digitorumjprofundus 

 (caput ulnare). 



M. flexor digitorum sublimis. N. ulnaris. V. collateralis ulnaris. 



Fio. 32. — Section across the Forearm at the Level indicated by B in Fig. 30. 



volar metacarpal artery underneath the tendon of the ulnar flexor 

 of the carpus. 



V. collateralis ULNAitis. — The collateral ulnar vein is a companion 

 of the like-named artery and ends by pouring its blood into the brachial 

 vein. At the carpus it is connected with the lateral volar metacarpal vein. 



N. medianus. — The median nerve has been followed in the arm 

 where it lies along the anterior border of the brachial artery. The 

 nerve, running in the groove between the biceps and the medial col- 

 lateral ligament, follows the median artery into the forearm where the 

 first part of its course is superficial ; soon, however, the nerve as well 



