Extensor carpi radialis longus
Musculus extensor carpi radialis longus
MuscularSuperficial musclesArmLeft and right
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- What it is
- Arises from the lower lateral supracondylar ridge of the humerus and runs along the radial side of the forearm to the dorsal base of the second metacarpal.
- Function
- Extends and radially deviates the wrist; keeps the wrist extended during a firm grip.
- Size
- About 25 cm long; fleshy in its upper half.
- Clinical note
- A frequent donor tendon for tendon transfers after nerve injuries.