Neuroanatomy Draw It To Know It

3. Peripheral Nervous System—Upper Extremity 41

DRAWING 3-6 Median Nerve — Complete

Ventral rami &

brachial plexus

Upper arm Forearm Hand

Superficial forearm group

(C6, C7)

Pronator teres

Flexor carpi radialis

(C7, C8)

Flexor digitorum sublimis

Palmaris longus

Anterior interosseous group

(C7 - T1)

Pronator quadratus

Flexor pollicis longus

Flexor digitorum

profundus (2,3)

Thenar group

(C8, T1)

Abductor pollicis brevis

Opponens pollicis

Flexor pollicis brevis

Terminal group

(C8, T1)

Lumbricals (1,2)

Lateral cord

Medial cord

Anterior

interosseous group

Anterior

interosseous nerve

Superficial

forearm

group

Median palmar

cutaneous nerve

Terminal group

Thenar group

Carpal tunnel

Recurrent motor

branch of the thumb

C6 and C7 (mostly sensory)

C8 - T1 (mostly motor)

Ligament of

Struthers

Pronator teres

heads

Upper & middle trunks

Middle & lower trunks

Digital branches (cutaneous)