Relationships among Coracobrachialis, Biceps Brachii, and Pectoralis Minor Muscles and Their Correlation with Bifurcated Coracoid Process

Figure 4

Type IIb with cut-off anatomical structures of the proximal attachment. The purple-dotted circles indicates both independent head of the coracobrachialis muscle, while the green-dotted line indicates cut-off short head of the biceps brachii. CP: coracoid process; DM: deltoid muscle; CBM: coracobrachialis muscle; shBB: short head of the biceps brachii; lhBB: long head of the biceps brachii.