Which joint allows for rotational movement between the axis and atlas of the neck?

The joint that allows for rotational movement between the axis (C2 vertebra) and atlas (C1 vertebra) of the neck is indeed the pivot joint. This type of joint is characterized by a cylindrical bony process that rotates within a ring structure, which allows for the rotational motion.

In the case of the cervical spine, the pivot joint permits significant rotation of the head. For instance, the movement enables actions such as shaking the head "no" and contributes to a range of motion that is essential for everyday activities. The unique design of this joint facilitates this motion while providing stability and support to the head and neck.

Other joint types do not provide the same range of motion as the pivot joint. For example, hinge joints primarily allow for flexion and extension movements, as seen in the elbows and knees. Ball-and-socket joints enable a wide range of movement including rotation but are not present in the specific area between the atlas and axis. Fixed joints, on the other hand, allow for no movement at all, which is not suitable for the required rotational functions in the neck's anatomy.