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Home Head Upper Body Lower Body Joints Joints There is four different types of joints: Ball-and-Socket Joint The ball-and-socket joint is a joint where the spherical end of one bone is lodged in an also spherical cavity in another bone. This provides a wide, circular range of movement. The shoulder is a very good example of this kind of joint, as is the hip. Hinge Joints Hinge joints are the simplest type of joint. They move back and forth in one direction, like the hinges on a door. These joints are found in the points where the fingers and toes bend, as well as in the elbows. Saddle Joints The saddle joint is a joint that can move in several different directions. It's a bit difficult to describe, but a good example of it is the joint that lets your thumb move. Saddle Joints The saddle joint is a joint that can move in several different directions. It's a bit difficult to describe, but a good example of it is the joint that lets your thumb move. Gliding joints Gliding joints have a wide range of mostly sideways movement. One of these joints is what allows your head to turn left and right so far.