Musculocutaneous nerve
Musculocutaneous Nerve Key Points
- Arises from the lateral cord of the brachial plexus.
- Derived from C5, C6 and C7 nerve roots
- Supplies anterior compartment of arm (brachialis, biceps brachii and coracobrachialis)
- Injuries to nerve result in motor weakness of elbow flexion and supination of the forearm. Sensory loss to lateral cutaneous area of forearm
 | |
Anatomical location of musculocutaneous nerve. Click on image to enlarge
 | |
Illustration showing course of the musculocutaneous nerve. Click on image to enlarge