Joint biochemistry

Synovial joints are composed of different morphological structures that have their distinct cellular and biochemical properties. Articular cartilage and synovial membrane are key components of synovial joints and show a number of peculiarities that makes them different from other tissues in our body. An in-depth knowledge of these structural and biochemical peculiarities is not only important for understanding key features of articular function but also provides explanations for important characteristics of both degenerative and inflammatory joint diseases. This chapter reviews the structure and biochemical composition of cartilage and synovium and points to important links between physiology and pathological conditions, particularly arthritis.