Essay by vpovedaJunior High, 8th gradeA+, November 2014

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Arthritis affects the musculoskeletal system, specifically the joints. It is the main cause of disability among people over fifty-five years of age in industrialized countries.

The word arthritis comes from the Greek arthon meaning "joint" and the Latin itis meaning "inflammation".

This Written Research Report articles includes details on the definitions of arthritis, its causes, the four main types of disease, its signs and symptoms, how arthritis affects people daily life, the benefits of physical and occupational therapy, currently available medications, and the impact of diet and exercise.


Arthritis is an inflammation of one or more of your joints. The main symptoms of arthritis are joint pain and stiffness, which typically worsen with age. The two most common types of arthritis are osteoarthritis and rheumatoid arthritis.

Eventually a swollen joint can suffer severe damage. In some cases, arthritis can cause problems in the patient's eye, skin or other organs.

Arthritis is not a single disease- it is term that covers over 100 medical conditions. Osteoarthritis (OA) is the most common form of arthritis and generally affects elderly patients. Some forms of arthritis can affect people at a very early age.

What causes arthritis

Basically, a joint is where one bone moves on another bone. Ligaments hold the two bones together. The ligaments are like elastic bands, while they keep the bones in place your muscles relax or contract to make the joint move.

Cartilage covers the bone surface to stop the two bones from rubbing directly against each other. The covering of cartilage allows the joint to work smoothly and painlessly.

A capsule surrounds the joint. The space within the joint - the joint cavity - has synovial fluid. Synovial fluid nourishes the joint and the cartilage. The synovial fluid is produced by the synovium (synovial membrane) which lines...