Crista galli

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]

Crista galli
Ethmoid bone from above.
Ethmoid bone from behind.
Details
Part of	Perpendicular plate of the ethmoid bone
System	Skeletal
Identifiers
Latin	crista galli
TA98	A02.1.07.004
TA2	724
FMA	57442
Anatomical terms of bone [edit on Wikidata]

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]