| Extensor carpi radialis longus | |
|---|---|
 Posterior view of the superficial muscles of the left forearm. Extensor carpi radialis longus visible in blue. | |
 Transverse section across the wrist and digits. (Ext. carp. rad. long. labeled at center left.) | |
| Details | |
| Origin | Lateral supracondylar ridge |
| Insertion | 2nd metacarpal |
| Artery | Radial artery |
| Nerve | Radial nerve |
| Actions | Extensor at the wrist joint, abducts the hand at the wrist |
| Antagonist | Flexor carpi ulnaris muscle |
| Identifiers | |
| Latin | musculus extensor carpi radialis longus |
| TA98 | A04.6.02.040 |
| TA2 | 2497 |
| FMA | 38494 |
| Anatomical terms of muscle | |
The extensor carpi radialis longus is one of the five main muscles that control movements at the wrist.[1] This muscle is quite long, starting on the lateral side of the humerus, and attaching to the base of the second metacarpal bone (metacarpal of the index finger).
- ^ Garten, Hans (2013-01-01), Garten, Hans (ed.), "M. extensor carpi radialis (longus and brevis)", The Muscle Test Handbook, Churchill Livingstone, pp. 58–59, doi:10.1016/b978-0-7020-3739-9.00029-8, ISBN 978-0-7020-3739-9, retrieved 2020-10-22