Internal occipital crest

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Internal occipital crest
File:Internal occipital crest2.png
Human skull side view (parietal bones removed). Position of internal occipital crest shown in red.
File:Gray130 Internal occipital crest.png
Occipital bone. Inner surface. (Position of internal occipital crest labeled as occipital sinus at center.)
Details
Latin crista occipitalis interna
Identifiers
Dorlands
/Elsevier
c_62/12266790
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Anatomical terms of bone
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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.

Additional images

Position of internal occipital crest (shown in red). Animation. 
Occipital bone. Internal occipital crest shown in red. Animation. 
Base of the skull. Internal occipital crest shown in red. 
Base of the skull. Upper surface. (Internal occipital crest visible below foramen magnum.) 
Base of the skull. Internal occipital crest labelled at bottom. 
Base of the skull. Internal occipital crest not labelled, but visible below foramen magnum

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

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