What type of joint allows for rotational movement?

The pivot joint is specifically designed to allow for rotational movement. It consists of a cylindrical bone that rotates within a ring-like structure formed by another bone and surrounding ligaments. This unique structure facilitates rotational motion around a single axis, enabling specific movements like the rotation of the head on the neck or the forearm's ability to rotate the palm up and down due to the pronation and supination at the radial-ulnar joint.

In contrast, other types of joints, such as hinge joints, allow for flexion and extension but do not permit rotation. Ball-and-socket joints allow for a wide range of movement, including rotational movement, but they also enable flexion, extension, abduction, and adduction, making them not exclusively rotational. Gliding joints offer limited movement and are primarily involved in sliding motions rather than rotation. Thus, among the options listed, the pivot joint is the most specialized for rotational movement.