Answer
Ball-and-socket joints
Work Step by Step
Freely movable joints include the hinge joints such as those found in the knee and elbows, saddle joints such as that found in the thumb, pivot joints such as that found in the vertebra holding our head up, and ball-and-socket joints such as those found in the shoulders and hips. The ball-and-socket joint gives us the most range of motion because it makes movement in many different directions possible.
