Structure of synovial joints
1. Synovial cavity or joint cavity
Contains pad of fat.
2. Articular cartilage (shock absorbers)
3. Articular capsule
a. Fibrous capsule (movement of joint)
b. Synovial membrane; combined with articular cartilage
(surround synovial cavity, secrete lubricating synovial fluid into cavity that lubricates it.
4. Synovial fluid
Contain phagocytic cells.
Hyaluronic acid
Secreted by synovial membrane fills synovial cavity (lubricating)
5. Articular disc or fibrocartilaginous discs
Shock absorbers
Prevent clashing between bones.
Fit surface of bones together.
Maintain stability of joint.
0 Comments