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 |
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