Anterior view of muscles

Biceps brachii

Brachialis

Brachioradialis

Clavicle.

Coracobrachialis

Deltoid

Extensor carpi radialis longus

Flexor carpi radialis

Flexor carpi ulnaris

Flexor retinaculum.

Lateral head .

Long head

Medial epicondyle of humerus .

Medial head

Palmar aponeurosis .

Palmer longus

Pectoralis major

Pronation teres

Tendon of biceps brachii