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Superior view of the cranial floor

Legend: (blue) anterior cranial fossa; (green) middle cranial fossa; (not colored) posterior cranial fossa. (Source: Edwards B, Wang JM, Iwanaga J, Loukas M, Tubbs RS. Cranial nerve foramina part I: a review of the anatomy and pathology of cranial nerve foramina of the anterior and middle fossa. Cureus 2018;10[2]:e2172. Creative Commons Attribution 3.0 Unported [CC BY 3.0] license, creativecommons.org/licenses/by/3.0.)