Axillary Arch of Langer

The axillary arch is a variant muscular slip of 

this muscle and is about 7 to 10 cm in length, splits from 

the upper edge of the latissimus dorsi and crosses the 

axilla in front of the axillary vessels and nerves. 

This variant muscle slip joins inferiorly to the tendon of the 

pectoralis major, the coracobrachialis or the fascia over 

the biceps brachii.