Coracobrachialis is a small muscle located in the upper limb, running from the coracoid process of the scapula to the medial surface of the humerus. It primarily facilitates the flexion and adduction of the arm at the shoulder joint, stabilizing the humerus within the shoulder cavity during arm movements. Due to its position and function, it plays a crucial role in various activities that involve lifting and holding positions.
The name "Coracobrachialis" is derived from "coraco," referring to the coracoid process of the scapula, and "brachialis," relating to the arm, reflecting its anatomical position and the areas it bridges.
Without the Coracobrachialis, the arm would have reduced ability to flex at the shoulder and would be less stable during abduction and flexion activities, impacting tasks such as lifting, throwing, or reaching forward.