SHOULDER SCAPULAR REGION 



49 



ends be secured and followed, they will be found to spread 

 out over the lateral and posterior part of the upper portion 

 of the deltoid region. 



Lateral end of clavicle 



Margin of acromion process 

 Pectoralis major 

 Cephalic vein 



Deltoid 



Cutaneous branches of axillary 

 (O.T. circumflex) nerve piercing 

 deltoid 



Lateral brachial cutaneous branch 

 of axillary (O.T. circumflex) nerve 



Biceps 



Lateral head of triceps 



Brachialis 



Upper branch of dorsal cutaneous 

 nerve of forearm 



ffif Cephalic vein 



Lower branch of dorsal cutaneous 

 nerve of forearm 



Brachioradialis 

 Tendon of triceps 



Olecranon 

 Extensor carpi radialis longus 



FIG. 20. The Deltoid Muscle and the lateral aspect of the Arm. 



The cutaneous branches of the axillary nerve consist 

 (a) of a large branch which turns round the posterior border 

 of the deltoid muscle, the lateral brachial cutaneous nerve, 



VOL. 14 



