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Glossary > Arthritis Today Glossary
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Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Lateral collateral ligament (LCL): The ligament that runs along the outside of the knee joint, providing stability to the outer (lateral) part of the knee.

Ligaments: Tough bands of connective tissue that attach bones to bones and help keep them together at a joint.

Lumbar spine: The lower back, composed of five vertebrae.

Lupus: An autoimmune disease that occurs primarily in women and affects many organs and organ systems, including the skin, joints, heart and blood vessels, kidneys and brain.

Lymphocytes: A type of white blood cell involved in the immune system.

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