| Synovial membranes are a modified form of serous membrane. They line the closed spaces between long bones and allow for diarthrotic joints (with lots of motion allowed). The synovial fluid which is produced in these spaces lubricates hylaline (articular) cartilage at the ends of the bones, thus reducing friction in the joint. When the fluid pressure rises, you can get a "tennis elbow", sprained ankle, or swollen knee. This is not the answer that I was looking for, however! Lets return to the original question. |