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Rheumatoid arthritis is a disorder in which the joints swell and cause pain. Rheumatoid arthritis causes the body’s own immune cells to attack the membrane of the joints. Which body system does rheumatoid arthritis affect?

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Answer:

Immune system

Explanation:

Rheumatoid arthritis is an autoimmune disease. Normally, your immune system helps protect your body from infection and disease. In rheumatoid arthritis, your immune system attacks healthy tissue in your joints. It can also cause medical problems with your heart, lungs, nerves, eyes and skin.

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