Joint structure, illustration 插畫檔

Illustration of synovial joint structure. A synovial joint consists of three basic components: articular surfaces, joint capsule, and joint cavity. The joint capsule has an outer fibrous layer and an inner synovial membrane, which produces synovial fluid to lubricate the joint, nourish cartilage, and absorb shock. Accessory structures (not shown in the figure) include ligaments, articular discs and labra, synovial folds, and synovial bursae