The optic canal travels through which bone?

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Prepare for the NBEO Ocular Anatomy Posterior Segment and Cranial Nerves Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

The optic canal travels through which bone?

Explanation:
The optic canal is a passage within the sphenoid bone, specifically in the lesser wing. It transmits the optic nerve (CN II) together with the ophthalmic artery as they move from the cranial cavity into the orbit. The lesser wing forms the boundary around this canal, near the orbital apex. In contrast, the ethmoid contributes to the anterior skull and nasal cavity structures, the greater wing of the sphenoid houses openings like the foramen rotundum and foramen ovale, and the temporal bone contains other openings such as the internal acoustic meatus and carotid canal.

The optic canal is a passage within the sphenoid bone, specifically in the lesser wing. It transmits the optic nerve (CN II) together with the ophthalmic artery as they move from the cranial cavity into the orbit. The lesser wing forms the boundary around this canal, near the orbital apex. In contrast, the ethmoid contributes to the anterior skull and nasal cavity structures, the greater wing of the sphenoid houses openings like the foramen rotundum and foramen ovale, and the temporal bone contains other openings such as the internal acoustic meatus and carotid canal.

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