D. ROBERTS / SCIENCE PHOTO LIBRARY D. ROBERTS / SCIENCE PHOTO LIBRARY
Human skull. X-ray of a human skull, seen from the front. At top is the rounded cranium which houses the brain. Teeth are seen in the upper and lower jaws (lower centre) and the eye sockets (orbits) and nasal cavity are also seen (centre). The skull consists of 22 bones fixed together by rigid joints called sutures (one seen, black, running up from between the eye sockets). The lower jaw is an exception as it hinges around its anchor points. Together these bones provide protection for the brain, and support the organs of sight, smell and hearing. Many of the bones are hollow, reducing the weight of the skull.
Model release not required. Property release not required.