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hypoglossal nerve

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Also known as cranial nerve XII, CN XII

12th cranial nerve

Key facts

Innervates
Genioglossus , hyoglossus , styloglossus , intrinsic muscles of the tongue
Latin
nervus hypoglossus
Mesh
D007002
Ta98
A14.2.01.191

via Wikipedia infobox

Research

6,287 papers

via PubMed

Wikidata facts

Image
Gray794.png
Show 4 more facts
Commons category
Nervus hypoglossus
name in kana
ぜっかしんけい
NCI Thesaurus ID
C12732
Sources (6)

via Wikidata · CC0

~13 min read

Encyclopedic overview

The hypoglossal nerve, also known as the twelfth cranial nerve, cranial nerve XII, or simply CN XII, is a cranial nerve that innervates all the extrinsic and intrinsic muscles of the tongue except for the palatoglossus, which is innervated by the vagus nerve.

CN XII is a nerve with a sole motor function. The nerve arises from the hypoglossal nucleus in the medulla as a number of small rootlets, pass through the hypoglossal canal and down through the neck, and eventually passes up again over the tongue muscles it supplies into the tongue.

Excerpted from Wikipedia’s “hypoglossal nerve” article, available under the CC BY-SA 4.0 licence.