Origin
Humerus, ulna, radial collateral ligament, annular ligament.
Insertion
Radius
Blood supply
Radial recurrent artery.
Nerve supply
Posterior interosseous nerve.
Action
The supinator helps in the turning movement at the hand. It acts as an accessory muscle to the biceps brachii.
Disease/Injury
Injury to the muscle or its excessive overuse can cause pain and swelling in the area of the muscle.
Muscle Exercise
Supination of the forearm using a resistance band strengthens your supinator muscle.
Interesting facts
NA
