Skull bones. Computer artwork showing the major bones of the human skull. These are: frontal (purple, upper left), parietal (green/beige, upper right), occipital (blue, lower right), temporal (pink, centre), zygomatic (beige, centre left), mandible (jawbone, orange, lower left), maxilla (green, centre left), lacrimal (top of maxilla), nasal (left of maxilla), ethmoid (red), sphenoid (green, centre). The spinal column (backbone) can also be seen.