Final answer:
A pivot joint is a type of synovial joint that allows rotational movement. An example of a pivot joint is the joint between the first and second vertebrae of the neck.
Step-by-step explanation:
A pivot joint is a type of synovial joint that allows rotational movement between bones. It consists of the rounded end of one bone fitting into a ring formed by another bone. An example of a pivot joint is the joint between the first and second vertebrae of the neck, which allows the head to move back and forth.