Anatomy of a healthy joint

Healthy knee joint, with detail showing synovial membrane and fluid, ligament, cartilage, and bone

The synovial membrane lines the joint and produces synovial fluid to cushion the movement of the joint.

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

© 1995-2021 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.