Infections may spread from the nasal cavity to the meninges along olfactory nerves.These fibers travel from the mucosa of the nasal cavity to the olfactory bulb through the

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The olfactory fibers travel from the mucosa of the nasal cavity to the olfactory bulb through the cribiform plate, which is a thin bone that separates the nasal cavity from the cranial cavity. Therefore, infections can spread from the nasal cavity to the cranial cavity through this route. The crista galli is a bony projection of the ethmoid bone that helps anchor the brain, but it does not have any direct connection to the nasal cavity or olfactory nerves. The superior and inferior orbital fissures are openings in the skull for the passage of nerves and blood vessels to the eye and surrounding structures, but they are not involved in olfactory function. The optic foramen is a passageway for the optic nerve and ophthalmic artery, which carry visual information and blood supply to the eye, respectively.

Infections May Spread from the Nasal Cavity to the Meninges