Muscle: Biceps brachii

Proximal Attachment:

• Short head - Tip of coracoid process of scapula

• Long head - Supraglenoid tubercle of scapula

Distal Attachment: Tuberosity of radius and fascia of forearm via bicipital aponeurosis

Innervation: Musculocutaneous nerve (C₅, C₆, C₇)

Main Action(s): Supinates forearm and, when it is supinated, flexes elbow joint; flexes shoulder joint; short head resists dislocation of shoulder