Median nerve
Plexus: Brachial
Cord: Medial and lateral
Roots:
C6
C7
C8
T1
Origin: Medial and lateral cords of brachial plexus
Motor innervation:
Pronator teres
Roots:
C6
C7
Flexor carpi radialis
Roots:
C6
C7
Palmaris longus
Roots:
C7
C8
Flexor digitorum superficialis
Roots:
C7
C8, T1
Flexor digitorum profundus I & II
Branch: Anterior interosseous nerve
Roots:
C8
T1
Flexor pollicis longus
Branch: Anterior interosseous nerve
Roots:
C7
C8, T1
Pronator quadratus
Branch: Anterior interosseous nerve
Roots:
C8
T1
Abductor pollicis brevis
Roots:
C8
T1
Flexor pollicis brevis (superficial head)
Roots:
C8
T1
Opponens pollicis
Roots:
C8
T1
Lumbricales I & II
Roots:
C8
T1
Sensory innervation:
Hand and base of thumb, radial aspect
Branch: Palmar cutaneous nerve
Roots:
C6
C7
Thumb, index, long and ring finger
Branch: Digital cutaneous nerves
Roots:
C6
C7
Syndromes:
Lesions at axillary/upper arm level
Lesions at elbow level
Pronator teres syndrome
Anterior interosseous nerve syndrome
Carpal tunnel syndrome
Palmar cutaneous nerve lesion
Palmar digital branches lesion