Crista galli

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The crista galli is a bony projection of the Ethmoid bone. The Falx cerebri attaches to the posterior border of the crista galli.

Embryology

Embryologically, the crista galli develops from the os ethmoidale. During the second fetal month, the crista galli forms together with the other structures of the anterior cranial fossa. Ossification of the crista galli begins approximately 2 months postnatally and is complete after approximately 24 months[^1].

Pneumatization

The crista galli varies morphologically between individuals and may be pneumatized. Pneumatization of the crista galli is primarily an extension of the Frontal sinus[^2].

Figure

Ethmoid bone
Anatomical drawing of the ethmoid bone. Figure adapted from Gray's Anatomy, Figure 149.
Ethmoid bone
Anatomical drawing of the ethmoid bone. Figure adapted from Gray's Anatomy.

Imaging

Crista galli on CT
Visualization of the crista galli (red arrow) on CT.

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Edit · Alaric Steinmetz · (+41 −51)
  • Text added: “Figure”
  • Text removed: “Illustration”
  • Text changed: “The Crista galli is a bony projection of the ethmoid bone . At the posterior edge of the crista galli, the falx cerebri attaches.”“The crista galli is a bony projection of the Ethmoid bone . The Falx cerebri attaches to the posterior border of the crista galli.”
  • Text changed: “Embryologically, the cista galli develops from the ethmoid bone. In the second fetal month, the crista galli forms together with other structures of the anterior cranial fossa . Ossification of the crista galli begins approximately 2 months postnatally and is completed after about 24 months[^1].”“Embryologically, the crista galli develops from the os ethmoidale. During the second fetal month, the crista galli forms together with the other structures of the anterior cranial fossa . Ossification of the crista galli begins approximately 2 months postnatally and is complete after approximately 24 months[^1].”
  • Text changed: “The crista galli is morphologically variable depending on the individual and can be pneumatized. Pneumatization of the crista galli is primarily an extension from the frontal sinus [^2].”“The crista galli varies morphologically between individuals and may be pneumatized. Pneumatization of the crista galli is primarily an extension of the Frontal sinus [^2].”

Article created on · Alaric Steinmetz

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