Extensor carpi radialis longus muscle
The extensor carpi radialis longus is one of the five main muscles that control movements at the wrist. 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).
| 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 | |
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