All bones comprising the skull are attached to each other via immovable joints, except for the mandible which is attached to the skull by a freely movable joint. There are eight cranial bones. The forehead is formed by the frontal bone which also forms the upper half of the eye sockets. Two parietal bones comprise the sides of the skull. Named so because they are above the parietal area of the brain, the parietal bones form the bulk of the cranium.
Temporal bones are inferior to the parietal bones on both sides of the skull.
The occipital bone, also named for the part of the brain it covers, forms the posterior portion of the skull. The sphenoid bone encloses the rest of the cranial cavity. It lies behind the eye sockets anterior to the temporal bones and posterior to the frontal bone. The sides of the eye sockets are formed by the Zygomatic bones. The rest of the sockets are formed by the Maxilla which is two bones that are fused together.