Root: C8
Associated nerves:
Thoracodorsal nerve
Medial pectoral nerve
Radial nerve
Median nerve
Ulnar nerve
Medial antebrachial cutaneous nerve
Motor innervation:
Pectoralis major (lateral part)
Pectoralis minor (medial part)
Pectoralis major (medial part)
Triceps, long head
Extensor carpi ulnaris
Extensor digiti minimi
Abductor pollicis longus
Extensor pollicis longus
Extensor pollicis brevis
Extensor indicis
Palmaris longus
Flexor digitorum profundus I & II
Pronator quadratus
Abductor pollicis brevis
Flexor pollicis brevis (superficial head)
Opponens pollicis
Lumbricales I & II
Flexor carpi ulnaris
Flexor digitorum profundus III & IV
Palmaris brevis
Adductor pollicis
Flexor pollicis brevis (deep head)
Abductor digiti minimi
Opponens digiti minimi
Flexor digiti minimi
Lumbricales III & IV
Palmar interossei
Dorsal interossei
Sensory innervation:
Arm, forearm and distal phalanges
Hand, dorsal, ulnar aspect
Hand, palmar ulnar aspect
Ring and small finger
Medial aspect of arm and forearm