Root: C7
Associated nerves:
Long thoracic nerve
Lateral pectoral nerve
Thoracodorsal nerve
Musculocutaneous nerve
Radial nerve
Median nerve
Ulnar nerve
Motor innervation:
Pectoralis major (lateral part)
Pectoralis major (medial part)
Coracobrachialis
Triceps, medial head
Triceps, long head
Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor carpi ulnaris
Extensor digiti minimi
Abductor pollicis longus
Extensor pollicis longus
Extensor pollicis brevis
Extensor indicis
Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor digitorum superficialis
Flexor pollicis longus
Flexor carpi ulnaris
Sensory innervation:
Arm, forearm and distal phalanges
Hand and base of thumb, radial aspect
Thumb, index, long and ring finger