The base of skull, also known as the cranial base or the cranial floor, is the most inferior area of the skull. It is composed of the endocranium and the lower parts of the calvaria.

Skull base
Base of the skull, inferior or inner surface
Base of the skull, exterior or outer surface. Showing various muscle attachments.
Details
Identifiers
Latinbasis cranii
externa et. interna
MeSHD019291
TA98A02.1.00.044
TA2447
FMA52801
Anatomical terms of bone

Structure

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Base of the skull. Inferior surface, attachment of muscles marked in red.

Structures found at the base of the skull are for example:

Bones

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There are five bones that make up the base of the skull:

 
Exobasis

Sinuses

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Foramina of the skull

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Endobasis-resistances beams
 
Endobasis-resistances nodes

Sutures

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Other

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The foramina in the base of the skull are exit and entry points for veins, arteries and cranial nerves.
 
The cranial nerves as they exit through various foramina.

Additional images

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