Which term means inflammation of the synovial membrane of a joint?

• A. Arthrodesis
• B. Synovitis
• C. Arthritis
• D. Nevus

Answer: (B)

Inflammation of the synovial membrane of a joint is called synovitis. The synovial membrane lines the joint capsule and produces synovial fluid to lubricate the joint; when it becomes inflamed, the resulting swelling and pain are characteristic of synovitis. This term is specific to the lining tissue of the joint. In comparison, arthrodesis means surgically fusing the bones of a joint, removing motion. Arthritis refers to inflammation of a joint in general and can involve multiple structures beyond just the synovial membrane. A nevus is a skin lesion, unrelated to joints.