Pronator Quadratus Muscle

**Semantic type:** Body Part, Organ, or Organ Component

**Definition:** A muscle that originates on the distal anteriomedial surface of the ulna and inserts in the distal anteriolateral surface of the radius; it is involved in the pronation of the forearm and is supplied by the anterior interosseous nerve and artery.

**Synonyms:** - PRONATOR QUADRATUS MUSCLE