Skull

A skull, or cranium, is a set of bones that make up the head of a vertebrate and keep in place all body parts in the head.Cephalization definition from Encyclopædia Britannica It supports the structures of the face and forms a protective cavity for the brain.Definition of skull from Merriam-Webster dictionary

As well as protecting the brain, the skull fixes the distance between the eyes and between the ears. This allows stereoscopic vision, and helps the brain judge direction and distance of sounds. In some animals, the skull also has a defensive function (e.g. horned ungulates). The frontal bone is where horns are mounted.skull rings

The skull is made of a number of joined (fused) flat bones. In humans, the adult skull is normally made up of 28 bones.

Structure
Skulls can be classified based on fenestras which are window or opening in a skull. There are 5 types of fenestras which are:
 Antorbital fenestra
 Mandibular fenestra
 Quadratojugal fenestra
 Subsquamosal fenestra
 Temporal fenestra

References

Other websites
 Skull Module (California State University Department of Anthology)
 Human skull base  


Category:Head (body part)