ANATOMY

Detailed explanation-1: -In a Synovial joint, the ends of bones are encased in smooth cartilage. Together, they are protected by a joint capsule lined with a synovial membrane that produces synovial fluid. The capsule and fluid protect the cartilage, muscles, and connective tissues.

Detailed explanation-2: -Synovial fluid is a viscous solution found in the cavities of synovial joints. The principal role of synovial fluid is to reduce friction between the articular cartilages of synovial joints during movement.

Detailed explanation-3: -Synovial fluid is a combination of a filtrate of plasma that enters the joint space from the subsynovial capillaries and hyaluronic acid, which is secreted by the synoviocytes. Hyaluronic acid provides the high viscosity of synovial fluid and, with water, its lubricating properties.