Internal occipital crest

Bone: Internal occipital crest
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Occipital bone. Inner surface. (Internal occipital crest not labeled, but occipital sinus is visible at center.)
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Base of the skull. Upper surface. (Internal occipital crest not labeled, but visible below foramen magnum.)
Latin crista occipitalis interna
Gray's subject #31 131

In the occipital bone, the lower division of the cruciate eminence is prominent, and is named the internal occipital crest; it bifurcates near the foramen magnum and gives attachment to the falx cerebelli; in the attached margin of this falx is the occipital sinus, which is sometimes duplicated.

In the upper part of the internal occipital crest, a small depression is sometimes distinguishable; it is termed the vermian fossa since it is occupied by part of the vermis of the cerebellum.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

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Look at other dictionaries:

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  • occipital sinus — noun : a venous sinus lodged in a groove on the internal occipital crest …   Useful english dictionary

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