SHOULDER SCAPULAR REGION 83 



with the posterior humeral circumflex artery established, if the 

 injection has flowed well. By the anastomosis the arterial 

 ring which encircles the proximal part of the humerus is 

 completed. 



Nervus Axillaris (O.T. Circumflex Nerve). The axillary 



M. triceps 

 (long head) 



Groove for circumflex 



artery of scapula 



(O.T. dorsahs 

 scapulae) 



. M. latissimus dorsi (scapular slip) 

 FIG. 38. Dorsum of Scapula with the Attachments of the Muscles mapped out. 



nerve accompanies the posterior humeral circumflex artery. 

 It supplies: (i) an articular twig to the shoulder-joint; (2) 

 muscular branches to the deltoid and teres minor; and (3) 

 cutaneous branches to the skin over the distal part of the 



