Final answer:
Ball and socket joints are multiaxial and allow for numerous movements including rotation which gives them the broadest range of motion among synovial joints.
Step-by-step explanation:
The human joints known as ball and socket are multiaxial; they are highly mobile and allow movement within several axes as well as planes. These joints, found at the shoulder and hip, are known for allowing the limbs to move in an anterior-posterior direction and a medial-lateral direction, as well as rotation around their long axis. This level of mobility in the ball-and-socket joints results in flexion-extension, abduction-adduction, circumduction, and medial (internal) and lateral (external) rotation. Because of these capabilities, they have the greatest range of motion of all synovial joints.