Which of the following cranial bones are paired (right and left)?

The paired cranial bones are those that exist in two symmetrical halves, one on each side of the skull. The parietal bones are indeed a pair, located on either side of the head, forming a significant part of the cranial vault. They play a vital role in protecting the brain and providing structure to the skull.

The frontal, occipital, and sphenoid bones, on the other hand, are single bones. The frontal bone forms the forehead and the upper part of the eye sockets; the occipital bone is located at the back and base of the skull; and the sphenoid bone is a complex bone that forms part of the base of the skull and the sides of the skull. Understanding the distinction between paired and unpaired bones is fundamental in studying human anatomy, especially in the context of cranial structures.