Final answer:
The fluid that accumulates within a swollen joint is produced by the Synovial membrane. The synovial membrane is a thin layer that lines the inner surface of the joint cavity at a synovial joint, and it produces the synovial fluid that lubricates the joint and reduces friction between the bones.
Step-by-step explanation:
The fluid that accumulates within a swollen joint is produced by the Synovial membrane.
The synovial membrane is a thin layer that lines the inner surface of the joint cavity at a synovial joint. It produces the synovial fluid, which is a thick and lubricating fluid that fills the interior of a synovial joint.
For example, in the knee joint, the synovial membrane lines the cavity of the joint and secretes synovial fluid which lubricates the joint and reduces friction between the bones as they move.
The fluid that accumulates within a swollen joint is produced by the synovial membrane. The synovial membrane is a type of connective tissue membrane that lines the cavity of a freely movable joint, such as those in the shoulder, elbow, and knee. This membrane secretes synovial fluid, which is a thick, lubricating fluid that reduces friction between the bones of a joint and provides nourishment to the articular cartilage.
Articular cartilage is a thin layer of hyaline cartilage that covers the ends of bones at a synovial joint but does not produce fluid. The meniscus, which is a fibrocartilage structure within some synovial joints, and tendons, which connect muscles to bones, do not produce this lubricating fluid either.