Biceps Brachii
The biceps brachii is a muscle in the anterior compartment of the arm. It has two heads, the long head and the short head. It is one of three muscles in the anterior compartment of the arm, the other two muscles being the brachialis and the coracobrachialis, which lie deep to it.
Despite being a relatively small muscle, the biceps brachii is one of the most highly trained muscles in the gym, along with the pectoral muscles and the deltoid muscles.
If you are a fitness enthusiast, what exercises do you use to train this muscle?
Learn about the muscles of the anterior compartment in this video and check out our 3D atlas where you can visualise and interact with these muscles for yourself.
Muscle | Action | Origin | Insertion | Innervation | Blood supply |
|---|---|---|---|---|---|
| Biceps Brachii | - Flexion of elbow - Supination of forearm | - Short head: Coracoid process - Long head: Supraglenoid Fossa | - Radial tuberosity | - Musculocutaneous nerve | - Brachial artery |
| Brachialis | - Flexion of elbow | - Distal half of anterior humerus | - Ulna tuberosity | - Musculocutaneous nerve | - Brachial artery |
| Coracobrachialis | - Assists in flexion of shoulder | - Coracoid Process | - Medial midshaft humerus | - Musculocutaneous nerve | - Brachial artery |