Skeletal system

Gliding: wrist. Pivot: between radius and ulna. Ball and socket: hip, shoulder. Hinge: elbow. Diseases and Disorders . Arthritis. Inflammation of the bones at the joints; usually with pain and changes in bone structure. Two Main Types of Arthritis. Osteoarthritis. Chronic disease that occurs with aging. Symptoms: joint pain, stiffness, aching ... ................
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