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2. Articular Cartilage

Articular cartilage exists in a thin layer over the ends of bones that interact within synovial joint cavities. This cartilage contains chondrocytes, cells that produce a thick liquid component of synovial fluid -- lubricin. There are no blood vessels within articular cartilage, so nutrients are obtained from synovial fluid.

knees synovial fluid VIKTORIYA KABANOVA / Getty Images

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.