Cranium is the skull structure which supports the head structure and protects the brain. it is divided into facial bones and brain case.
Explanation:
The skull constitutes of twenty two individual bones which are not movable and united into a single unit. the twenty second bone which is called the Mandible is the only movable bone which comprise the lower jaw of the skull. Anterior view of the skull provides a support fir the eyes and structures of the face. in the lateral view, skull is dominated by the large, rounded brain case above and the upper and lower jaws with their teeth below, Separating these areas is the bridge of bone called the zygomatic arch.The sphenoid bone is a single, complex bone of the central skull . It serves as a “keystone” bone, because it joins with almost every other bone of the skull. The sphenoid forms much of the base of the central skull and this is the posterior view of the skull.
