The wrist joint is a complex structure that connects the forearm to the hand. It consists of several small bones, primarily the carpals, which allow for a wide range of motion. The joint enables movements such as flexion, extension, and rotation, making it essential for daily activities like writing and typing. Surrounding the wrist joint are ligaments and tendons that provide stability and support. The synovial membrane produces synovial fluid, which lubricates the joint, reducing friction during movement. Overall, the wrist joint plays a crucial role in hand function and mobility.