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The '''cranial nerves''' are the [[nerves]] arising mostly from the [[brainstem]] of an organism which supply motor and sensory paths to the head. In humans, there are 12 cranial nerves.
The '''cranial nerves''' are the [[nerves]] arising from the base of the [[brain]] and the [[brainstem]] of an organism which supply motor and sensory paths to the head. In humans, there are 12 cranial nerves.
==CN I: Olfactory Nerve==
The '''olfactory nerve''' carries sensory information from the chemoreceptors in the nasal passage to the olfactory bulb in the forebrain, via the perforations of the cribriform plate.
==CN II: Optic Nerve==
The '''optic nerve''' carries visual information from the eye to the occipital lobe of the brain, where it is processed. The nerve travels from the eye to the thalamus via the optic chiasm, where it partially [[decussation|decussates]].