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What is the synovium?

The synovium is a layer of cells that cover the inside of the joint capsule and form a membrane. The cells of the synovium produce a small amount of thick fluid called synovial fluid that helps nourish the cartilage and keeps it slippery. The synovium has a tough outer layer called the capsule.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.