Function of anconeus is
ANCONEUS:- Origin: back of lateral epicondyle.Inseion:-lateral side of olecranon process. and upper surface of posterior surface of ulna.Nerve supply: nerve to anconeus. (Branch of radial nerve)Action:weak extensor of elbow joint.{Reference: vishram singh, pg no.129}
Pronation
Supination
Flexion
Extension
Upper limb