The structure of a typical joint is shown on the right. A joint is typically where two bones meet. As shown on the diagram, ligaments are necessary to attach and stabilise the bones. Synovial fluid fills the cavity between the two bones and provides a lubricating medium. It also provides nutrients to the cartilage that is inside the synovial capsule. Cartilage covers the ends of each bone and provides a soft cushioning medium that absorbs some of the force of impact.
Arthritis is a degenerative condition of the joints that can debilitate and disfigure. Two common forms of arthritis are osteoarthritis and rheumatoid arthritis. These two forms will be discussed in more detail below.
View the video on the right and answer the questions below.
In the knee two bones meet, the femur and the tibia. The connecting surfaces of these two bones are covered with
What is the function of cartilage?
What is the function of synovial fluid and where is it found?
What causes significant bone breakdown and gives rise to inflammation?
What are the joints most commonly affected by osteoarthritis?
What is the cause of osteoarthritis?
Is sport a contributor to the onset of osteoarthritis? What is the evidence for or against. In order to answer this question you may need to read online information of research conducted.
What is rheumatoid arthritis and how does it come about?
How does this form of arthritis differ from osteoarthritis?
What is an autoimmune disease?
Apart from joints, what other parts of the body can suffer from rheumatoid arthritis?