36 



SUPERFICIAL ANATOMY OF THE UPPER LIMB. 



side respectively of the prominence of the biceps ; along the outer of these the 

 cephalic vein may generally be seen ascending beneath the skin ; in the inner, 

 which is better marked, are placed the basilic vein (in its lower half or less super- 

 ficial to the fascia), the brachial vessels and the median nerve. The brachial artery 



Fig. 16. SUPERFICIAL ANATOMY OF THE UPPER LIMB : ANTERIOR VIEW. 

 G. W. B. Waters.) (R. J. G. & G. D. T.) 



(From a photograph by 



is usually overlapped to some extent by the margin of the biceps, but it can be felt 

 pulsating throughout. Pressure should be applied to the vessel from within 

 outwards in the upper half of the arm, from before backwards in the lower. 



On the outer side of the biceps, a portion of the brachialis anticus conies to the 

 surface, and beyond that the supinator longus and extensor carpi radialis longior 

 form a prominence which descends to the forearm in front of the external condyle ; 



circumflex 



/ nefue. and vessels 



Fig. 17. SUPERFICIAL ANATOMY OF THE UPPER LIMB : POSTERIOR VIEW. 

 G. W. B. Waters.) (R. J. G. & G. D. T.) 



(From a photograph by 



the supinator muscle shows very plainly if the elbow be forcibly flexed with the 

 hand in a state of semipronation. On the inner side of the biceps, in the lower 

 part of the arm, a smaller portion of the brachialis anticus is superficial, and between 

 this and the triceps, the internal intermuscular septum can be felt, with the ulnar 

 nerve close behind it, descending to the internal condyle. 



