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Crista galli

Upper part of the ethmoid bone of the skull From Wikipedia, the free encyclopedia

Crista galli
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The crista galli (Latin: "crest of the rooster") is a wedge-shaped, vertical, midline upward continuation of the perpendicular plate of the ethmoid bone of the skull,[1] projecting above the cribriform plate[2] into the cranial cavity. It serves as an attachment for the membranes surrounding the brain.[1]

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Structure

Attachments

The falx cerebri (a fold of the dura mater surrounding the brain) attaches to the crista galli.[citation needed]

Relations

The olfactory bulbs of the olfactory nerve lie on either side of the crista galli on top of the cribriform plate.[citation needed]

Variation

The base of crista galli varies in height.[2] A bifid crista galli may suggest intracranial extension of a nasal dermoid cyst.[3]

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References

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