Pronator teres muscle

Pronator teres muscle
Anterior view of the left forearm. Superficial muscles. (Pronator teres colored at center.)
Details
OriginHumeral head: medial supracondylar ridge of humerus slightly above the medial epicondyle of humerus (common flexor tendon)
Ulnar head: coronoid process of ulna
InsertionMiddle of the lateral surface of the body of the radius
ArteryUlnar artery and radial artery
NerveMedian nerve
ActionsPronation of forearm, flexes elbow
AntagonistSupinator muscle
Identifiers
Latinmusculus pronator teres
TA98A04.6.02.025
TA22478
FMA38450
Anatomical terms of muscle

The pronator teres is a muscle (located mainly in the forearm) that, along with the Pronator quadratus muscle pronator quadratus, serves to pronate the forearm (turning it so that the palm faces posteriorly when from the anatomical position). It has two origins, at the medial humeral supracondylar ridge and the medial side of the coronoid process of the ulna and inserts near the middle of the radius.