A joint is a place where two or more bones meet and is also called an articulation.
Synovial joints (freely movable joints) allow us the free movement to perform skills and techniques during physical activity.
Synovial joints have synovial fluid in the joint cavity that lubricates or 'oils' the joint so it moves smoothly. Synovial fluid is made by the synovial membrane.
In synovial joints, the ends of the bones are covered with cartilage (called articular cartilage) which cushions the joint and prevents friction and wear and tear between the bone ends. Cartilage is a soft, spongy connective tissue. The articular capsule prevents wear and tear on the bones.
The bones in a synovial joint are connected by ligaments, which:
The movement at a synovial joint is caused by the muscles attached across the joint. Muscles are attached to bone by tendons. Tendons are very strong, inelastic connective tissues that allow a muscle to pull on a bone to move it.
Four of the synovial joint types are responsible for a range of sporting techniques.
Which type of joint allows the greatest range of movement?
Ball and socket.