Pronator Teres

Written by Oliver Jones

Last updated October 5, 2022 • 4 Revisions

The pronator teres is a muscle within the superficial compartment of the anterior forearm.

The lateral border of the pronator teres forms the medial border of the cubital fossa – an anatomical area located over the elbow.

  • Attachments: Originates from the medial epicondyle of the humerus and the coronoid process of the ulna. It attaches laterally to the mid-shaft of the radius.
  • Actions: Pronation of the forearm.
  • InnervationMedian nerve.
  • Blood supply: Ulnar artery

Fig 1
The superficial muscles of the anterior forearm.

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