Human skull

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Human Skull

The Human Skull (pronunciation: /ˈhjuːmən skʌl/) is a bony structure that forms the head in humans. It supports the structures of the face and provides a protective cavity for the brain.

Etymology

The term "skull" is derived from the Old Norse word "skalli" which means a bald head, scalp, or a helmet.

Structure

The human skull is generally considered to consist of twenty-two bones—eight cranial bones and fourteen facial skeleton bones. In the neonate, the skull is made up of forty-four bones which include the addition of sutural bones.

Cranial Bones

The cranial bones are the Frontal bone, Parietal bones (2), Temporal bones (2), Occipital bone, Sphenoid bone, and Ethmoid bone.

Facial Bones

The facial skeleton bones are the Vomer, Zygomatic bones (2), Nasal bones (2), Lacrimal bones (2), Palatine bones (2), Inferior nasal conchaes (2), Maxilla (2), and Mandible.

Function

The skull provides the framework for the structure of the face and forms a protective cavity for the brain. The skull is also involved in several functions, including support of the structures of the face, and providing a protective cavity for the brain.

Related Terms

  • Cranium: The upper part of the skull, which encloses and protects the brain.
  • Mandible: The lower jawbone in mammals.
  • Maxilla: The upper jawbone in mammals.
  • Zygomatic bone: The bone that forms the prominent part of the cheek and the outer side of the eye socket.

External links

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