The biceps brachii has a long and a short head. The division between them can be seen in bodybuilders in whom this muscle is well developed and who have little fat in the area.

Origin

The biceps brachii has a long and a short head. In the shoulder joint the long head of the biceps is attached to the scapula at the top of the glenoid cavity, and the short head is attached to the coracoid of the scapula.

Insertion

At the lower end, the two heads blend into a common muscle and tendon which crosses the elbow joint and attaches to the tuberosity of the radius (close to the elbow).

Function

To lift and curl the arm and pronate (twist downward) the wrist.

Biceps Curl with a Barbell

Incline Bench Biceps Curl with Dumbbells

Biceps Curl on a Machine