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 | |
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]
References
External links
- MedEd at Loyola Radio/curriculum/ENT/jay84a.jpg
- Floor of the cranial cavity (close-up)[dead link] - BioWeb at University of Wisconsin System
- "Anatomy diagram: 34257.000-2". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2014-01-01.
- Cross section image: skull/x-front—Plastination Laboratory at the Medical University of Vienna
