Which of the following is classified as a facial bone?

The zygomatic bone, often referred to as the cheekbone, is classified as a facial bone because it forms part of the structure of the face. Facial bones are specifically those that contribute to the framework of the face and are involved in the formation of the mouth, nose, and orbit of the eye. The zygomatic bone plays a crucial role in defining the shape of the face and providing structure for the cheeks.

In contrast, the frontal, occipital, and temporal bones are classified as cranial bones, which form the protective case around the brain. The frontal bone constitutes the forehead and the upper part of the eye sockets, while the occipital bone forms the back and base of the skull, and the temporal bone is located on the sides and base of the skull. These bones do not contribute directly to the facial structure in the manner that the zygomatic bone does.