Biceps Brachii-Short Head

Muscle Origin

Coracoid Process of Scapula to radial tuberosity.

Short head: coracoid process of the scapula.anatomy-model-muscles-arm-907-edited

Insertion

Radial tuberosity and the bicipital aponeurosis.

Action

Flexes elbow and supinates hand.

Flexion of forearm, Supinates forearm, Flexion of the arm at the shoulder. At the shoulder joint, the biceps brachii provides some help to the deltoid to flex the humerus or move it anteriorly. The short head also provides some unique functions that are not provided by the long head. It acts as an adductor to move the humerus toward the body’s midline and pull the arm closer to the trunk. The short head also acts as a fixator to stabilize the shoulder joint.

Innervation – Nerve control

Musculocutaneous nerve and nerve roots at C5, C6, and C7.

Artery

Muscular branches of brachial artery.anatomy-model-muscles-034-edited-2

Many blood vessels and nerves pass between the fascicles to provide blood flow and communication to the skeletal muscle fibers. The fascicles, nerves, and blood vessels are bundled yet again to form the whole biceps muscle, wrapped in an outer layer of fibrous connective tissue known as epimysium.

Antagonist muscles

Triceps brachii, Anconeus.

Pictures of muscles

 

Trigger Point Referrals

 

Stretching description

 

Exercises

 

Injuries

 

Treatment

 

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