What does the synovium do within joints?

The synovium plays a critical role in joint function and health by providing lubrication and nourishment to the cartilage surfaces within the joint. This specialized tissue lines the inner surface of the joint capsule and secretes synovial fluid, which reduces friction between articulating bones during movement. Additionally, this fluid is essential for maintaining the cartilage's health, as it provides essential nutrients and has a role in waste removal from the cartilage.

The lubrication offered by the synovial fluid not only facilitates smooth movement but also helps in absorbing shock during physical activities. Nourishing the cartilage is also vital because cartilage does not have its own blood supply, making the availability of nutrients through synovial fluid critical for maintaining its integrity and function.

While other tissues and structures contribute to a joint's overall function, the primary role of the synovium is specifically centered on the lubrication and nourishment aspects, which directly impact the joints' mobility and health.