Which bone is NOT classified as a face bone?

The frontal bone is not classified as a facial bone because it primarily makes up the forehead and the bony structure of the skull, rather than contributing to the face itself. The facial bones include structures that form the shape and support of the face, such as the mandible (lower jaw), maxilla (upper jaw), and zygomatic bone (cheekbone). These bones play crucial roles in functions like chewing, facial expressions, and forming the orbit of the eye. In contrast, the frontal bone does not partake in these facial functions and is instead a cranial bone, highlighting its distinction from the facial bones.