ARTERIAL SUBDIVISION. 



195 



MAIN TRUNK. 

 Superior cervical. 



Vertebral. 

 Internal thoracic. 



External thoracic. 

 Inferior cervical. 



Supra-scapular. 

 Subscapular. 



Humeral. 



Anterior radial. 

 Posterior radial. 



Radio-palmar, or trunk 

 of interosseous met- 

 acarpal. 



Sub-carpal arch. 



Collateral metacarpal. 



COLLATERAL. 



First intercostal. 



External, superior and 

 inferior muscular 

 branches, internal 

 spinal. 



Superior branch to 

 pericardium and 

 mediastinum, inferi- 

 or and external mus- 

 cular branches. 



Branches to latissimus 

 dorsi, posterior cir- 

 cumflex of the 

 shoulder, muscular 

 branches. 



Prehumeral, or anter- 

 ior circumflex of the 

 shoulder, deep hu- 

 meral, epicondyloid, 

 artery of coraco- 

 radialis. 



Articular and muscu- 

 lar branches. 



Articular and muscu- 

 lar branches, inter- 

 osseous of fore- 

 arm. 



Two posterior inter- 

 osseous, two anter- 

 ior interosseous. 



Branches to supra-car- 

 pal arch, synovial 

 and tendinous bran- 

 ches anastomose to 

 anterior and poster- 

 ior interosseous. 



TERMINATION. 



Anastomoses with oc- 

 cipito-muscular and 

 dorsal. 



With occipital. 



Anterior abdominal, 

 and thoracic or as- 

 ternal. 



Muscular branches. 



Superior, or ascend- 

 ing, and inferior, or 

 descending. 



Muscular branches. 



Muscular branches. 



Anterior and posterior 

 radial. 



At knee joint. 



Interosseous metacar- 

 pal, collateral meta- 

 carpal. 



Supra-carpal arch, sub- 

 carpal arch. 



Digital. 



