Joint capsule
Joint Capsule
The Joint Capsule (pronounced: /ˈdʒɔɪnt ˈkæpsəl/) is a crucial component of the skeletal system that encloses the synovial joint and seals the joint cavity.
Etymology
The term "Joint Capsule" is derived from the Latin words 'junctus', meaning 'joined', and 'capsula', meaning 'little box'.
Definition
The Joint Capsule is a flexible, yet sturdy, envelope that surrounds the synovial joint. It is composed of two layers: the outer fibrous membrane that provides strength and stability, and the inner synovial membrane that produces synovial fluid for lubrication.
Function
The primary function of the Joint Capsule is to maintain the stability of the joint by limiting its range of motion and preventing dislocation. It also produces synovial fluid which nourishes the cartilage and reduces friction during movement.
Related Terms
- Synovial Joint: A type of joint that is surrounded by a thick flexible joint capsule and contains synovial fluid.
- Synovial Fluid: A viscous, non-Newtonian fluid found in the cavities of synovial joints.
- Fibrous Membrane: The outer layer of the joint capsule that provides strength and stability.
- Synovial Membrane: The inner layer of the joint capsule that produces synovial fluid.
See Also
External links
- Medical encyclopedia article on Joint capsule
- Wikipedia's article - Joint capsule
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