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Foramen rotundum
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The foramen rotundum is a circular opening in the base of the greater wing of the sphenoid bone, found posterior to the medial end of the superior orbital fissure. This foramen allows passage for the maxillary nerve, the second branch of the trigeminal nerve (CN V).
The foramen rotundum runs an inferior and lateral course and connects the middle cranial fossa with the pterygopalatine fossa.
| Terminology |
English: Foramen rotundum Latin: Foramen rotundum |
| Location | Greater wing of the sphenoid bone |
| Contents | Maxillary nerve (CN V2) |
Test your knowledge about the skull bones with this interactive quiz.
Learn about other openings and landmarks of the sphenoid bone in the following study unit:
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Frequent questions
Where is the foramen rotundum located?
The foramen rotundum is located in the middle cranial fossa. Specifically, it is found in the greater wing of the sphenoid bone. The maxillary nerve (CN V2) passes through the foramen rotundum.
What passes through foramen rotundum?
The maxillary nerve (the second branch of the trigeminal nerve) passes through the foramen rotundum.
What bone is the foramen rotundum in?
The foramen rotundum is located in the greater wing of the sphenoid bone.
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