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image: Pronator Quadratus
Pronator Quadratus

Pronator Quadratus

 Action :

  • Pronates forearm.
  • Deep fibers bind radius and ulna together.

Origin :

  • Distal 1/4 of anterior surface of ulna.

Insertion :

  • Distal 1/4 of anterior surface of radius.

Innervation :

  • Anterior interosseous nerve from median nerve (C8 and T1).

Arterial Supply :

  • Anterior interosseous artery.

Depth :

  • Superficial
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