Neck pain | Brachial Plexus | Upper Limb Pain | Medial Cord

Nerves from the medial cord (5):
Medial pectoral nerve (C8, T1): Supplies the sternal head of the pectoralis major muscle. Sternal head is also supplied by the lateral pectoral nerve)
Medial cutaneous nerve of the arm (T1): supplies the medial arm
Medial cutaneous nerve of the forearm (T1): Supplies the medial forearm
Medial head of the median nerve (C8, T1): Supplies the flexor digitorum superficialis, abductor pollicis brevis, flexor pollicis brevis-superficial head, opponens pollicis and first two lumbrical muscles.
The anterior interosseous nerve supplies the flexor pollicis longus, flexor digitorum profundus slips to index and middle fingers and pronator quadratus.
There are no sensory branches from the anterior interosseous nerve.
Ulnar nerve (C8, T1): Supplies the flexor carpi ulnaris, flexor digitorum profundus slips to the ring and little fingers, palmaris brevis, abductor digiti minimi, flexor digiti minimi and opponens digiti minimi.
The sensory branches include dorsal ulnar cutaneous nerve of the forearm which supplies the skin over the dorsal aspect of the hand and medial two fingers; skin over the hypo-thenar eminence from the ulnar nerve and sensation to the medial half of the ring finger and the little fingers from the ulnar digital nerves.
The deep branch of the ulnar nerve supplies adductor pollicis, deep head of the flexor pollicis brevis , third and fourth lumbricals and dorsal and palmar interossei muscles.