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The radiocarpal joint is a synovial joint thatâs also found in the wrist. The radius articulates with the first row of carpal bones, except for the pisiform. It has a fibrous joint capsule thatâs attached to that distal end of the radius and the ulna and to the carpal bones.
The wrist is a complex joint that connects the hand to the forearm. The wrist is comprised of the ends of the two forearm bones (the ulna and radius) and eight small bones called carpals. The radius is positioned on the thumb side of the wrist, and the ulna on the pinky side.