Functions and Types of Joints
Joints represent all the parts of our body where two bones meet. They allow our skeleton to move and therefore our body to perform a wide range of motion.
Depending on their location on the skeleton and the bones they connect, joints can be classified into 3 main types according to their level of mobility i.e., the range of motion they can perform:
- Fibrous (fixed) joints: They do not allow movement. They are notably found in the skull, between the jawbone and the teeth, or between the first ribs and the sternum.
- Cartilaginous (semi-mobile) joints: These joints allow a limited range of motion. Cartilage is found between the bones of semi-mobile joints. This group includes the vertebrae of the spine and neck.
- Synovial (movable) joints: These joints allow a large range of motion. In this type of joint, the head of one bone fits into the hollow end of the other bone. This group includes the knee, shoulder, ankle, wrist, and hip joints.