pivot joint

[Couch Potatoe]

a freely moving joint in which movement is limited to rotation

[Oralee]

A pivot joint is a type of synovial joint that allows rotation. This joint consists of a cylindrical bone that fits into a ring not only formed by the bone but also a ligament. This rotational movement occurs around a single axis. An example of pivot joint in humans includes the joint between the first and second vertebrae of the neck that allows the head to rotate and pivot.