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| Inferior longitudinal muscle of tongue | |
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The mouth cavity. (Longitudinalis inferior labeled at bottom left.)
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| Details | |
| Origin | Root of tongue |
| Insertion | Apex of tongue |
| Nerve | Hypoglossal nerve (CN XII) |
| Actions | Retracts tongue with superior longitudinal muscle, making tongue short and thick |
| Identifiers | |
| Latin | musculus longitudinalis inferior linguae |
| TA98 | A05.1.04.107 |
| TA2 | 2123 |
| FMA | 46694 |
| Anatomical terms of muscle | |
The inferior longitudinal muscle of tongue is an intrinsic muscle of the tongue.[1] It is situated on the under surface of the tongue between the genioglossus and hyoglossus.[citation needed] It is innervated by the hypoglossal nerve (cranial nerve XII). Its contraction shortens and thickens the tongue.
The inferior longitudinal muscle of the tongue is an intrinsic muscle of the tongue.[1] It is thin and oval in cross-section. It is situated between the paramedian septum, and the lateral septum.[2] It extends from the root to the apex of the tongue. Posteriorly, some of its fibers attach onto the body of the hyoid bone.[citation needed] Anteriorly, its fibres blend with those of the styloglossus, hyoglossus, and genioglossus to form the ventral area of the tip of the tongue.[2]
The inferior longitudinal muscle of the tongue is supplied by the hypoglossal nerve (CN XII).[3]
Contraciton of the inferior longitudinal muscle of the tongue shortens and thickens the tongue.[2]
This article incorporates text in the public domain from page 1130 of the 20th edition of Gray's Anatomy (1918)
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| Extraocular |
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| Masticatory |
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| Facial |
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| Soft palate |
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| Tongue |
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