Motor and sensory function of the nerves of the arm

Nerve	Motor function	Sensory function
Median	Wrist flexion and abduction Thumb and index finger flexion Thumb opposition	Palmar thumb, index and middle finger, and radial half of ring finger
Ulnar	Wrist flexion and adduction Finger spread Flexion of distal phalanx of fifth digit	Ulnar side of ring finger and associated dorsal hand Little finger and associated dorsal hand
Radial	Wrist extension Supination Thumb extension	Dorsal web space between thumb and index finger and dorsal hand, excluding the ulnar distribution
Musculocutaneous	Elbow flexion	Lateral forearm

Graphic 53902 Version 6.0

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