NERVE LIBRARY · Upper limb
Median nerve
Median nerve
Nocturnal radial-digit paresthesia suggests carpal tunnel involvement. Forearm weakness or thenar skin sensory loss warrants a proximal assessment.
- Roots / nucleus
- C6–T1; some references include C5
- Function
- Mixed
- 3D protocols
- 2 related protocols
01Course and sensory territory
Palmar radial three and a half digits and their fingertips. The palmar cutaneous branch leaves proximal to the carpal tunnel.
02Motor supply
APB, pronator teres and FCR; the AIN supplies FPL, radial FDP and pronator quadratus.
03Localization clues
Nocturnal radial-digit paresthesia suggests carpal tunnel involvement. Forearm weakness or thenar skin sensory loss warrants a proximal assessment.
04Combine the studies
Start with median sensory and APB motor studies; add same-hand ulnar/radial comparisons and proximal median muscles as indicated.
Explore the related 3D protocols
These retain the existing source-supported landmarks and references. The 3D model is educational; clinical work requires palpation and measured distances.
Related muscles
Connect to a clinical question
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References and further reading
- Median Mononeuropathies ↗AAPM&R KnowledgeNow · Society educational review · Link accessed 2026-09-08
- Upper and Lower Extremity Nerve Conduction Studies (2023) ↗AANEM · Technical course · Link accessed 2026-09-08
Educational synthesis; independent neuromuscular specialist review is pending. Publication dates and compilation dates are distinct. This is an original teaching synthesis; consult the source for complete methods and criteria.