Pronator quadratus muscle
Pronator quadratus is a square-shaped muscle on the distal forearm that acts to pronate (turn so the palm faces downwards) the hand.
| Pronator quadratus muscle | |
|---|---|
Anterior view of left forearm. Deep muscles. (Pronator quadratus visible at bottom-center right.) | |
| Details | |
| Origin | medial, anterior surface of the ulna |
| Insertion | lateral, anterior surface of the radius |
| Artery | anterior interosseous artery |
| Nerve | median nerve (anterior interosseous nerve) |
| Actions | pronates the forearm |
| Antagonist | Supinator muscle |
| Identifiers | |
| Latin | musculus pronator quadratus |
| TA98 | A04.6.02.038 |
| TA2 | 2493 |
| FMA | 38453 |
| Anatomical terms of muscle | |
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