Synovial layer of synovial bursa

The synovial layer of synovial bursa forms the inner lining of the bursa and is composed of vascular connective tissue lined by synoviocytes. It secretes synovial fluid, which lubricates the bursal cavity and reduces friction between adjacent moving structures (e.g., tendon and bone, skin and bone).

Structure

The synovial membrane of a bursa can be described as having two continuous layers—a parietal layer (lining the inner surface of the fibrous wall) and a visceral layer (reflected over the moving structure, such as a tendon).

These two layers are continuous around the margins of the bursa, enclosing a potential space filled with synovial fluid.

Summary

The synovial layer of a bursa has parietal and visceral portions, creating a closed lubricated cavity, while the fibrous layer is the tough outer wall that provides mechanical strength and anchorage. Together, they allow smooth, low-friction movement between structures subjected to mechanical stress.