<P> The function of the radioulnar joint is to lift and maneuver weight load from the distal radioulnar joint to be distributed across the forearm 's radius and ulna as a load - bearing joint . Supination of the radioulnar joint can move from 0 degrees neutral to approximately 80 - 90 degrees where Pronation of the Radioulnar Joint can move from 0 degrees neutral to approximately 70 - 90 degrees . Supination ( palms facing up ) vs. pronation ( palms facing down ) . Muscles that contribute to function are all supinator ( Biceps Brachii , Brachioradialis , and Supinator ) and pronator muscles ( Brachioradialis , Pronator Quadratus , and Pronator Teres ) . </P>
<P> The function of the radioulnar joint is to lift and maneuver weight load from the distal radioulnar joint to be distributed across the forearm 's radius and ulna as a load - bearing joint . Supination of the radioulnar joint can move from 0 degrees neutral to approximately 80 - 90 degrees where Pronation of the Radioulnar Joint can move from 0 degrees neutral to approximately 70 - 90 degrees . Supination ( palms facing up ) vs. pronation ( palms facing down ) . Muscles that contribute to function are all supinator ( Biceps Brachii , Brachioradialis , and Supinator ) and pronator muscles ( Brachioradialis , Pronator Quadratus , and Pronator Teres ) . </P>
what kind of joint is the radioulnar joint
what kind of joint is the radioulnar joint
load - bearing joint
load - bearing joint