rheumatoid arthritis ra is an auto immune disease and inflammatory type of arthritis

age anatomy antibody arthritis autoimmune body bone capsule care cartilage cytokines deformity diagram disease finger hand hands health healthcare healthy human illustration immune inflammation injury isolated joint knee lymphocyte macrophage medical medicine normal osteoarthritis osteoclast osteoporosis pain painful rheumatism rheumatoid science skeletal skeleton surgery swelling synovial therapy