Which of the following is NOT a bone of the face?

The frontal bone is categorized as a cranial bone rather than a facial bone. It forms the forehead and the upper part of the eye sockets, making it integral to the cranium. While it contributes to the facial structure by forming the front aspect of the skull, it is not considered a bone of the face in the same way that the nasal, palatine, and zygomatic bones are. The nasal bone forms the bridge of the nose, the palatine bone makes up part of the hard palate and nasal cavity, and the zygomatic bone is commonly known as the cheekbone, all of which are essential components of the facial skeleton. Understanding the differences in the classification of cranial vs. facial bones is crucial when studying the anatomy related to dental and facial structures.