superior longitudinal muscle of tongue
{{Short description|Intrinsic muscle of the tongue}}
{{No footnotes|article|date=May 2015}}
{{Infobox muscle
| Name = Superior longitudinal muscle of tongue
| Latin = musculus longitudinalis superior linguae
| Image = Musculuslongitudinalissuperiorlinguae.png
| Caption = A coronal section of tongue, showing intrinsic muscles.
| Origin = Close to epiglottis, from median fibrous septum
| Insertion = Edges of tongue
| Blood =
| Nerve = Hypoglossal nerve (CN XII)
| Action = Retracts tongue with inferior longitudinal muscle, making tongue short and thick
}}
The superior longitudinal muscle of tongue or superior lingualis is a thin layer of oblique and longitudinal fibers immediately underlying the mucous membrane on the dorsum of the tongue.
Structure
The superior longitudinal muscle of the tongue is one of the intrinsic muscles of the tongue.{{Cite book|last1=Aggarwal|first1=Annu|chapter-url=https://www.sciencedirect.com/science/article/pii/B9780444520142000446|title=Handbook of Clinical Neurology|last2=Thompson|first2=Philip D.|publisher=Elsevier|year=2011|isbn=978-0-444-52014-2|pages=617–628|language=en|chapter=44 - Unusual focal dyskinesias|volume=100 |doi=10.1016/B978-0-444-52014-2.00044-6|pmid=21496611 |issn=0072-9752}} It arises from the submucous fibrous layer close to the epiglottis and from the median fibrous septum, and runs forward to the edges of the tongue.
= Nerve supply =
The superior longitudinal muscle of the tongue is supplied by the hypoglossal nerve (CN XII).{{Cite book|last1=Love|first1=Russell J.|chapter-url=https://www.sciencedirect.com/science/article/pii/B9780750690768500137|title=Neurology for the Speech-Language Pathologist|last2=Webb|first2=Wanda G.|publisher=Butterworth-Heinemann|year=1992|isbn=978-0-7506-9076-8|edition=2nd|pages=112–136|language=en|chapter=7 - The Cranial Nerves|doi=10.1016/B978-0-7506-9076-8.50013-7}}
Function
The superior longitudinal muscle of the tongue works with the other intrinsic muscles to move the tongue.
References
{{Gray's}}
{{Muscles of head}}
{{Portal bar|Anatomy}}
{{Authority control}}
Category:Muscles of the head and neck
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