EXTREMITIES. 31 



ANGEiOLOGY. 



Arteries : the superior and inferior scapular with 

 the humeral. 



Superior scapular, or superscapular — collateral 

 branch of the axillary artery — I'uns upwards between 

 the subscapularis muscle and the antea-spinatus, and 

 terminates at the lower part of the scapula. 



Inferior scapular, or subscapular ^ also collateral 

 branch of the axillary, runs between the subscapularis 

 muscle and the adductor of the arm to the dorsal 

 angle of the scapula; it li'is collateral branches to tlie 

 latissimus dorsi muscle, one forming the posterior cir- 

 cumflex of the shoulder, and also anterior and posterior 

 muscular branches. 



Humeral artery is tlie terminal branch of the axil- 

 lary. It runs down inside of tlie arm to the inferior 

 extremity of the humerus, where it terminates by the 

 anterior and posterior radial. Its collateral branches 

 are : 1 — the prehumeral or anterior circumflex of tlie 

 shoulder going to the mastoido-humeralis muscle ; 2 — 

 the external collateral of the elbow, or deep humeral, 

 passing to the large extensor of the fore-arm, and by 

 another branch to the front of the elbow joint ; 3 — the 

 internal collateral of the elbow, epicondyloid or cubital 

 artery, terminating at the carpus anastomosing with 



