Nerves of the orbit, and the ciliary ganglion. Side view. (Nasociliary is at center.)
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| colspan="2" |Nerves of septum of nose. Right side. (Nasociliary is rightmost yellow line.)
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|Latin
|colspan="2"|n. nasociliaris
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|
|colspan="2"|[subject #200 ]
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|Innervates
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|From
|colspan="2"|Ophthalmic nerve
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|To
|colspan="2"|long root of the ciliary ganglion, the long ciliary nerves, the infratrochlear nerve, and the ethmoidal nerves
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|MeSH
|colspan="2"|[]
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|Dorlands/Elsevier
|colspan="2"|[/]
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The nasociliary nerve is a branch of the ophthalmic nerve. It is intermediate in size between the two other main branches of the ophthalmic nerve, the frontal nerve and the lacrimal nerve, and is more deeply placed.
Path
It enters the orbit between the two heads of the Rectus lateralis, and between the superior and inferior rami of the oculomotor nerve.
Finally, it emerges, as the external nasal branch, between the lower border of the nasal bone and the lateral nasal cartilage, and, passing down beneath the Nasalis muscle, supplies the skin of the ala and apex of the nose.
