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Median Nerve
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| |
| Median Nerve | |
|---|---|
| Nerve Type | Mixed nerve |
| Origin |
|
| Major Branches | anterior interosseous nerve, palmar cutaneous branch, motor branch in the hand |
| Sensory innervation | Medial palm plus entire palmar and distal dorsal surface of the lateral 3.5 digits. |
| Motor innervation | flexor compartment of the forearm, thenar and intrinsic hand muscles |
Motor Supply
All but five intrinsic hand muscles are innervated by the ulnar nerve. The remaining are innervated by the C8-T1 roots via the Median Nerve. The mnemonic AbOF can be used to remember which muscles are above the law in that they aren't innervated by the ulnar nerve: the abductor (Ab) and flexor (F) pollicis brevis, opponens pollicis (O), and lateral lumbricals (Law).[1]
