Extensor indicis muscle
In human anatomy, the extensor indicis [proprius] is a narrow, elongated skeletal muscle in the deep layer of the dorsal forearm, placed medial to, and parallel with, the extensor pollicis longus. Its tendon goes to the index finger, which it extends.
| Extensor indicis proprius | |
|---|---|
Transverse section across distal ends of radius and ulna. (Label "Ext. indic. prop." visible at bottom center.) | |
Posterior surface of the forearm. Deep muscles. Extensor indicis muscle is labeled in purple. | |
| Details | |
| Origin | posterior distal third of ulna and interosseous membrane |
| Insertion | index finger (extensor hood) |
| Artery | posterior interosseous artery |
| Nerve | posterior interosseous nerve |
| Actions | extends index finger, wrist |
| Identifiers | |
| Latin | musculus extensor indicis |
| TA98 | A04.6.02.052 |
| TA2 | 2515 |
| FMA | 38524 |
| Anatomical terms of muscle | |
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