Synovial Joints and Lubrication mechanisms

Synovial joints form the most important feature of the human body as they represent the centers of the most essential and basic activity in the human beings, which is motion. A synovial joint can be described as a load carrying system consisting of two mating bones with tangential and /or normal motions. The bone ends, which are usually spherical in appearance, are covered with a soft sponge like material, called articular cartilage. The space between these cartilaginous extremities of the bones, known as joint cavity, is filled with a sheardependent fluid called synovial fluid. The surfaces of the synovial joints have a high degree of geometrical conformity.