The subcutaneous prepatellar bursa lies between the skin of the knee and the patella, permitting movement of the skin. The knee, like other freely movable joints, has closed, fluid-filled sacs called bursae associated with it. Each bursa has an inner lining of synovial membrane, which may be continuous with the synovial membrane of a nearby joint cavity. Bursae act as cushions and aid the movement Continue Scrolling To Read More Below...