Back عضلة زندية باسطة للرسغ Arabic Biləyi açan dirsək əzələsi Azerbaijani Múscul cubital posterior Catalan Musculus extensor carpi ulnaris German Músculo extensor cubital del carpo Spanish ماهیچه بازکننده مچ به زند پایینی Persian Muscle extenseur ulnaire du carpe French Músculo extensor cubital do carpo Galician השריר פושט שורש היד הגומדי HE Ulnarni ispružač zapešća Croatian
| Extensor carpi ulnaris | |
|---|---|
 Posterior surface of the forearm. Extensor carpi ulnaris labeled in purple at center right. | |
| Details | |
| Origin | Humeral head: Lateral epicondyle of the humerus. Ulnar head: Olecranon, posterior surface of ulna, antebrachial fascia |
| Insertion | 5th metacarpal |
| Artery | Ulnar artery |
| Nerve | Posterior interosseous nerve |
| Actions | Extends and adducts the wrist |
| Antagonist | Flexor carpi radialis |
| Identifiers | |
| Latin | musculus extensor carpi ulnaris |
| TA98 | A04.6.02.045 |
| TA2 | 2507 |
| FMA | 38506 |
| Anatomical terms of muscle | |
In human anatomy, the extensor carpi ulnaris is a skeletal muscle located on the ulnar side of the forearm. The extensor carpi ulnaris acts to extend and adduct at the carpus/wrist from anatomical position.
Being an extensor muscle, extensor carpi ulnaris is located on the posterior side of the forearm.