Extensor carpi radialis brevis
Musculus extensor carpi radialis brevis
MuscularSuperficial musclesArmLeft and right
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- What it is
- Arises from the common extensor origin on the lateral epicondyle and inserts on the dorsal base of the third metacarpal.
- Function
- Extends and radially deviates the wrist and steadies it during gripping.
- Size
- About 22 cm long.
- Clinical note
- Its origin is the main site of degeneration in lateral epicondylitis ("tennis elbow").