Arizona State University (ASU) Tempe Practical 1 Practice Test

The joint between the humerus and the radius is the humeroradial joint, where the capitulum of the humerus meets the head of the radius. This hinge-like articulation mainly allows elbow flexion and extension. Forearm rotation, such as turning the palm up or down, is handled primarily by the proximal and distal radioulnar joints, not this junction. The radiocarpal joint is the wrist joint, between the radius and the carpal bones. So the correct joint is the humeroradial joint.