What is synovial fluid?
The joint fluid is called the synovial fluid. Gray's Anatomy (1918) describes it as a viscous, egg-white-like fluid.
What it is
- A viscous, egg-white-like fluid.
- Produced by the synovial membrane lining a joint capsule.
- Lubricates the joint and nourishes the cartilage.
Where it is
- Fills the cavity of every synovial joint.
- Held in place by the fibrous capsule.
- A very thin film in a healthy joint.
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Last verified: 2026-07-18
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