Summary:
- Joints are places where two or more bones of the skeleton meet.
- With the help of muscles, joints allow the body to move with relatively little force.
- There are three main types of joints: immovable, partly movable, and movable.
- A ball-and-socket joint, such as the shoulder, has the greatest range of motion.
- Other joints in the human skeleton that are not depicted here include saddle, ellipsoid, and plane joints.
- Try moving each of the joints indicated in the diagram to see how they move.