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National Institute of Arthritis and Musculoskeletal and Skin Diseases

(continued)

Key Words continued...

Synovium – a thin membrane inside the joint capsule that secretes synovial fluid.

Synovial fluid – a fluid secreted by the synovium that lubricates the joint and keeps the cartilage smooth and healthy.

Tendons – tough, fibrous cords that connect muscles to bones.

Transcutaneous electrical nerve stimulation (TENS) – a technique that uses a small electronic device to direct mild electric pulses to nerve endings that lie beneath the skin in a painful area. TENS may relieve some arthritis pain. It seems to work by blocking pain messages to the brain and by modifying pain perception.

X ray – a procedure in which low-level radiation is passed through the body to produce a picture called a radiograph. X rays of joints affected by osteoarthritis can show such things as cartilage loss, bone damage, and bone spurs.

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WebMD Public Information from the U.S. National Institutes of Health

Reviewed on May 01, 2006
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