External nasal nerve

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Nerve: External nasal nerve
Sensory areas of the head, showing the general distribution of the three divisions of the fifth nerve. (Nasal nerve labeled at center left.)
The sphenopalatine ganglion and its branches.
Latin rami nasales externi nervi infraorbitalis
Gray's subject #200 891
Innervates nose
From maxillary nerve (infraorbital nerve)
Dorlands/Elsevier r_02/12691092

The external nasal branches (or external nasal nerve) are terminal branches of the anterior ethmoidal nerves (from the ophthalmic division of the trigeminal nerve, CN V), and provide sensory innervation to the skin of the side of the nose and of the septum mobile nasi.

Distribution of the maxillary and mandibular nerves, and the submaxillary ganglion.

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

 This neuroscience article is a stub. You can help Wikipedia by expanding it.
v • d • e
The cranial nerves: trigeminal nerve
V1 - ophthalmic lacrimal • frontal (supratrochlear, supraorbital) • nasociliary (long root of ciliary, long ciliary, infratrochlear, posterior ethmoidal, anterior ethmoidal)
parasympathetic ganglion: ciliary ganglion (short ciliary)
V2 - maxillary middle meningeal

in the pterygopalatine fossa (zygomatic, zygomaticotemporal, zygomaticofacial, sphenopalatine, posterior superior alveolar)

in the infraorbital canal/infraorbital nerve (middle superior alveolar, anterior superior alveolar)

on the face (inferior palpebral, external nasal, superior labial, infraorbital plexus)

parasympathetic ganglion: pterygopalatine ganglion (deep petrosal, nerve of pterygoid canal) - branches of distribution (greater palatine, lesser palatine, nasopalatine, pharyngeal)
V3 - mandibular meningeal • medial pterygoid

anterior (masseteric, deep temporal, buccal, lateral pterygoid)

posterior (auriculotemporal, lingual, inferior alveolar, mylohyoid, mental)

parasympathetic ganglion: otic ganglion • submandibular ganglion
Retrieved from "http://en.wikipedia.org/wiki/External_nasal_nerve"
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