Types of Joints
There are 3 types of Joints in your body.
A Sliding Joint allow bones in the hand to glide over one another, giving some flexibility to the area.
A Ball-and-socket Joint is a joystick on a computer game, the shoulder enables your arm to move freely in all directions.
A Hinge Joint is like a hinge on a door, the knee enables you to flex and extend you lower leg.
Joints are where your bones connect and ligaments keep your joints together with bands of strong elastic.