Hypoglossal nerve

Schematic image of the hypoglossal nerve and innervation targets.

A case with unilateral hypoglossal nerve injury in branchial cyst surgery. Note atrophy and deviation of the tongue.
[5]Examination will upon damage show an inability to stick the tongue out straight, and it will deviate towards the side with nerve damage.

The hypoglossal nerve is the twelfth cranial nerve XII, and innervates muscles of the tongue. The name hypoglossus springs from the fact that its passage is below the tongue, hypo meaning "under", and glossus meaning "tongue", both of which are from Ancient Greek. The nerve is involved in controlling tongue movements required for speech, food manipulation (i.e. formation of bolus), and swallowing.

单词	Cranial Nerve XII
释义	Cranial Nerve XII 英语百科 Hypoglossal nerve The hypoglossal nerve is the twelfth cranial nerve XII, and innervates muscles of the tongue. The name hypoglossus springs from the fact that its passage is below the tongue, hypo meaning "under", and glossus meaning "tongue", both of which are from Ancient Greek. The nerve is involved in controlling tongue movements required for speech, food manipulation (i.e. formation of bolus), and swallowing.
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Cranial Nerve XII

Hypoglossal nerve