Inferior longitudinal muscle of tongue | |
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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]