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The wrist joint (also known as the radiocarpal joint) is a synovial joint in the upper limb, marking the area of transition between the forearm and the hand.In this article, we shall look at the structures of the wrist joint, the movements of the joint, and the relevant clinical syndromes.he wrist joint receives blood from branches of the dorsal and palmar carpal arches, which are derived from the ulnar and radial arteries (for more information, see Blood Supply to the Upper Limb). Innervation to the wrist is delivered by branches of three nerves: 1  Median nerve â Anterior interosseous branch.
The wrist is formed where the two bones of the forearm â the radius (the larger bone on the thumb side of the arm) and the ulna (the smaller bone on the pinky side) â meet the carpus. Rather than a single joint, the wrist is actually made up of multiple joints where the bones of the arm and hand meet to allow movement.The carpus is formed from eight small bones collectively referred to as the carpal bones.The carpal bones are bound in two groups of four bones:he hand and wrist are made up of many different bones, muscles and ligaments that enable a wide range of movements. The following are the main structures of the hands: