Base of the skull

The base of the skull (or skull base) forms the floor of the cranial cavity and separates the brain from the structures of the neck and face.

Gross anatomy

The base of the skull is a bony diaphragm composed of a number of bones including (from anterior to posterior):

Sutures which take part in the formation of skull base include:

The inner surface of the base of the skull can be divided into:

The base of the skull is perforated by several foramina which allow several important vessels and nerves to pass through the base of the skull (see main article: cranial foramina for further details).​

Head and neck anatomy
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Article information

rID: 28333
Section: Anatomy
Tags: pm, refs
Synonyms or Alternate Spellings:
  • Skull base

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Cases and figures

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    Figure 1: superior view
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    Skull base inferi...
    Figure 2: inferior view
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