Origin | Medial, anterior surface of the ulna |
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Insertion | Lateral, anterior surface of the radius |
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Action(s) | When pronator quadratus contracts, it pulls the lateral side of the radius towards the ulna, thus pronating the hand. Its deep fibers serve to keep the two bones in the forearm bound together. It also aids in wrist extenstion. |
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Nerve Supply | Median nerve (anterior interosseous nerve) |
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Arterial Supply | Anterior interosseous artery |
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Physical Exam | Enter physical examination maneuvers for muscle |
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Clinical Importance | Enter clinical importance of muscle |
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Disease States | Enter links to pages where muscle involved |
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Discussion | Discussion on muscle |
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