912 



THE VASCULAR SYSTEM. 



(c) The suprasternal, to the sternal end of the clavicle and the sterno-clavicular 

 joint. 



(d) Acromial branches, which ramify over the acromion, anastomosing with the 

 acromial branches of the thoraco-acromial and the posterior circumflex arteries. 



Levator scapulae 



scending branch of transverse cervical artery 



Trapezius ^Transverse scapular artery 



Rhomboideus minor 



Descending branch 



of transverse 



cervical artery 



Rhomboideus major 



Infraspinatus 

 Long head of triceps 



Teres major 

 Latissimus dorsi 



Infraspinatus 

 Deltoid 

 Teres minor 



Axillary nerve 

 Posterior circumflex 

 artery 



Circumflex scapular- 

 artery 

 Triceps (lat. head) 



rofunda artery 

 Radial nerve 



Triceps (lat. head) 



Brachialis 



FIG. 765. DISSECTION OF THE BACK OF THE SHOULDER AND ARM, showing the anastomosing vessels 

 on the dorsum of the scapula, and the posterior humeral circumflex and the profunda arteries. 



(e) Articular, to the acromio-clavicular and shoulder-joints. 



(/) The subscapular, which is given off as the artery passes over the superio: 

 transverse ligament. It passes down into the subscapular fossa, gives branches to the 

 subscapularis, and it anastomoses with the branches of the subscapular artery and the 

 descending branch of the transverse cervical artery. 



(g) Supraspinous, which ramify in the supraspinous fossa, supplying the muscle, and 

 anastomosing with the descending branch of the transverse cervical. 



(A) Terminal branches ramify in the infraspinous fossa, and anastomose with thi 



