Extensor carpi ulnaris
Musculus extensor carpi ulnaris
MuscularSuperficial musclesArmLeft and right
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- What it is
- Arises from the lateral epicondyle and the posterior border of the ulna and runs down the back of the ulna to the base of the fifth metacarpal.
- Function
- Extends and adducts (ulnar-deviates) the wrist.
- Size
- About 24 cm long.
- Clinical note
- Its tendon can snap out of its groove over the ulnar head in tennis and golf players.