Hinge - The convex surface of one bones fits into the concave surface of another to allow movement back and forth in one plane onl, Ball and Socket - The spherical head of one bone fits into a cup cavity of another allowing for a 360 degree range of motion called circumduction, Pivot - Formed when the end of one bone interacts with a ring made of bone and ligament. Allows for a twisting motion, Saddle - One bone is convexed and the other is concaved. Allow for a side to side and up and down motion, Condyloid/Ellipsoid - One surface is slightly convex which fits into a slightly concaved depression of another. Allows for less side to side and up and down motion than a saddle joint,

Types of Freely Movable/Synovial Joints

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