As of the latest update, Google Chrome and Microsoft Edge have made a breaking change to how file uploads are handled. Once your system installs this update, you will not be able to upload new images. Please use another browser until we can get it fixed.

Crista galli

The crista galli is a thick, midline, smooth triangular process arising from the superior surface of the ethmoid bone, projecting into the anterior cranial fossa. It separates the olfactory bulbs, which lie either side of it in the olfactory fossae of the cribriform plate. It serves as an anterior attachment for the falx cerebri. Immediately lateral to it are the nasal slits where the anterior ethmoidal nerves descend into the roof of the nasal cavity.

The crista galli may contain marrow or be pneumatized. On MRI, it may therefore appear T1 hyperintense if it contains marrow, or have low signal and mimic a mass if pneumatized.

History and etymology

Crista galli is Latin for rooster's crest.

Anatomy: Head and neck

Anatomy: Head and neck

Share article

Article information

rID: 45496
Section: Anatomy
Synonyms or Alternate Spellings:

Support Radiopaedia and see fewer ads

Cases and figures

  • Figure 1: pneumotised crista galli
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.