THE RADIAL ARTERY. 241 



along the anterior surface of the subscapular muscle and 

 anastomoses with the posterior scapular. 



Anterior Circumflex. Encircles the neck of the 

 humerus. 



Posterior Circumflex. Encircles the neck of the 

 humerus. 



THE BRACHIAL ARTERY. 



The brachial artery is a continuation of the axillary, 

 and runs down the inner side of arm and terminates at 

 the bend of the elbow, where it divides into the radial 

 and ulnar. It sends off: 



Superior Profunda. Runs in the musculo-spiral 

 groove, supplies the muscles, and anastomoses with 

 the recurrent branches at the bend of the elbow. 



Inferior Profunda. Anastomoses with the ulnar 

 recurrent, and is distributed to internal condyle. 



Nutrient. Supplies the humerus. 



Anastomotica Mayna. Arises above elbow-joint and 

 anastomoses with the profunda and recurrent arteries. 



Muscular. To muscles of arm. 



THE RADIAL ARTERY. 



The radial artery, smaller than the ulnar, passes 

 down along the radial side of forearm. It is subcuta- 

 neous for its lower third, then passes over the back of 

 the base of the metacarpal of the thumb, and runs 

 down between the two heads of the first dorsal inter- 

 osseous muscle into the palm of the hand, lying on the 

 bases of the metacarpals, and forms the deep palmar 

 arch. The radial sends off three sets of vessels. 



In the Forearm. 



Radial Recurrent. Passes up and anastomoses with 

 the superior profunda. 



Muscular. To the muscles of the forearm. 



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