 | This article needs additional citations for verification. (October 2020) |
| Flexor carpi ulnaris | |
|---|---|
 Dorsal (left) and ventral (right) views of deep muscles of the left forearm. The flexor carpi ulnaris muscle is in blue. | |
| Details | |
| Origin | Medial epicondyle (common flexor tendon) and medial margin on olecranon of ulna |
| Insertion | Pisiform, hook of the hamate, base of the fifth metacarpal bone (volar aspect) |
| Artery | Ulnar artery |
| Nerve | Muscular branches of ulnar nerve (from C8 and T1) |
| Actions | Flexion and adduction of wrist |
| Antagonist | Extensor carpi radialis brevis muscle and extensor carpi radialis longus muscle |
| Identifiers | |
| Latin | musculus flexor carpi ulnaris |
| TA98 | A04.6.02.030 |
| TA2 | 2483 |
| FMA | 38465 |
| Anatomical terms of muscle | |
The flexor carpi ulnaris (FCU) is a muscle of the forearm that flexes and adducts at the wrist joint.