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Muscles in anterior compartment of arm
Biceps brachii, brachialis, coracobrachialis
Biceps brachii nerve supply and action
Musculocutaneous nerve supply. Flexion of arm and forearm, medial rotation of forearm
Brachialis nerve supply and action
Musculocutaneous nerve supply. Flexion of forearm
Coracobrachialis nerve supply and action
Musculocutaneous nerve supply. Flexion and adduction of arm
Muscles in posterior compartment of arm
Triceps brachii
Triceps brachii nerve supply and action
Radial nerve supply. Extends shoulder and forearm