Want this question answered?
FlexAbility
Bursa or Bursae
amniotic sac
Amniotic sac
They are called as bursae. They reduce the friction of the muscle tendons.
FlexAbility
Bursa or Bursae
Some Synovial joints may have fluid-filled sacs called bursae.
amniotic sac
Amniotic sac
No, bursitis and enthesopathy are not the same. Bursitis refers to inflammation of the bursae, which are fluid-filled sacs that cushion joints. Enthesopathy, on the other hand, is a condition where there is pain and dysfunction at the site where tendons or ligaments attach to bone.
A bursa.
Joints may be synovial (with a cavity) or fibrous. Synovial joints are filled with synovial fluid. Fibrous joints lack this. Fibrous joints are found in between the vertebrae. Cartilage in is both joints. This can be hylaine or fibrocartilage. Both regenerate. The synovial fluid is rather slippery and allows easy movement in those joints. If this joint is suddenly and rapidly pulled, the fluid doesn't fill quickly and a "snapping" sound is heard.
The synovial membrane is the inner membrane of tissue that lines a joint. The synovial membrane secretes synovial fluid which serves to lubricate the joint and reduce the friction between bones in joints.
I believe youre asking what fluid makes the joints movement fluid... the answer is synovial fluid, made of mostly water. Its held between the bones by an overall structure called the joint capsule. There are smaller, more specific parts of the joint capsule, but I wont go into detail. Synovial fluid is not secreted by the joint capsule or the surrounding cartilage, however. Since the capsule is richly vascularized but poorly innervated, it just takes in water from the bloodstream whenever necessary to keep the capsule filled. It does not create its own synovial fluid.
Fibrous joints connect bones to minimize movement. The bones of your skull and pelvis are held together by fibrous joints. Cartilaginous joints are joints in which the bones are attached by cartilage. These joints allow for only a little movment, such as in the spine or ribs. Synovial joints allow for much more movement than cartilaginous joints. Cavaties between bones in synovial joints are filled with synovial fluid. This fluid helps lubricate and protect the bones. Bursa sacks contain the synovial fluid.
Joints may be synovial (with a cavity) or fibrous. Synovial joints are filled with synovial fluid. Fibrous joints lack this. Fibrous joints are found in between the vertebrae. Cartilage in is both joints. This can be hylaine or fibrocartilage. Both regenerate. The synovial fluid is rather slippery and allows easy movement in those joints. If this joint is suddenly and rapidly pulled, the fluid doesn't fill quickly and a "snapping" sound is heard.