Crista galli
Ethmoid bone from above.
Ethmoid bone from behind.
Details
Part ofperpendicular plate of the ethmoid bone
Systemskeletal
Identifiers
LatinCrista galli
TA98A02.1.07.004
TA2724
FMA57442
Anatomical terms of bone

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]

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

  1. ^ a b Fehrenbach, Margaret J.; Herring, Susan W. (2017). Illustrated Anatomy of the Head and Neck (5th ed.). St. Louis: Elsevier. p. 57. ISBN 978-0-323-39634-9.
  2. ^ a b Hajiioannou, Jiannis; Owens, David; Whittet, Heikki B. (2010). "Evaluation of anatomical variation of the crista galli using computed tomography". Clinical Anatomy. 23 (4): 370–373. doi:10.1002/ca.20957. ISSN 1098-2353. PMID 20196125. S2CID 12865173.
  3. ^ Clark, W. D.; Bailey, B. J.; Stiernberg, C. M. (February 1985). "Nasal dermoid with intracranial involvement". Otolaryngology–Head and Neck Surgery. 93 (1): 102–104. doi:10.1177/019459988509300121. ISSN 0194-5998. PMID 3920605. S2CID 12407939.

External links


Neurocranium of the skull
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