BRACHIAL ANEURISM. 



101 



The brachial or humeral artery is tied by making ah incision on 

 the inner edge of tiie biceps flexor muscle, of two inches in length, 



Fig. 30. 



about the middle of the arm. The median nerve will be found first, 

 lying close to the artery; this and the veins are to be carefully 

 separated. It must be borne in mind, that the artery may 

 bifurcate as high as the axilla. If it be necessary to tie the 

 artery in the upper portion of the arm, an incision is to be made 

 over the pulsating vessel, and 



it will be found on the inner Fig. 31. 



edge of the coraco-brachialis 

 muscle; the nerves and vems 

 are to be carefully avoided. 

 Deligation of the radial 

 and ulnar arteries is seldom 

 required except for wounds. 

 Often wounds in the palm 

 of the hand require the tying 

 of the humeral artery. The 

 radial may be exposed in 

 the upper part of the fore- 

 arm, by an incision through 

 the skin and superficial 

 fascia. By separating the 

 supinator longus muscle 

 from the pronator teres, 

 the artery will be found 

 as it passes over the ten- 

 don of the pronator. In the 

 lower part of the forearm 

 the radial may be readily 

 exposed by making an incision through the skin and fascia on the 

 outer border of the flexor carpi radialis ; and the ulnar by an incision 

 on the radial side of the flexor carpi ulnaris muscle. 



9 



