extensor carpi radialis longus

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Introduction

Muscle of posterior compartment of forearm.

Origin

lateral supracondylar ridge of humerus

Insertion

posterior aspect of base of 2nd metacarpal bone

Action

extends & abducts hand at wrist

Innervation

radial nerve

More general terms

References

  1. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999