Musculus biceps brachii

Beginning:


 * caput longum - tuberculum supraglenoidale scapulae;


 * caput breve - processus coracoideus scapulae.

Tendon: tuberositas radii (main tendon), secondary tendon - aponeurosis musculi bicipitis brachii (lacertus fibrosus).

Innervation: nervus musculocutaneus (C5 and C6).

Functions: in the elbow joint, the whole muscle flexes and supinates; in the shoulder joint - the long head helps in abduction; the short head helps in adduction and ventral flexion.

Vascular supply: a. brachialis