Movement at the distal radial-ulnar joint
- This joint, together with the proximal radio-ulnar joint, allows for the pronation and supination of the forearm.
- The ulnar notch of the lower end of the radius moves circumferentially along the articular circumference of the ulnar head (lower end of the ulna).
- The supinating and pronating movements are performed in the range of 90° and 85°, respectively.