Inferior longitudinal muscle of tongue

Inferior longitudinal muscle of tongue
Coronal section of tongue, showing intrinsic muscles.
The mouth cavity. (Longitudinalis inferior labeled at bottom left.)
Latin musculus longitudinalis inferior linguae
Gray's subject #242 1130
Origin root of the tongue
Insertion    apex of the tongue
Artery
Nerve Hypoglossal nerve
Actions

The Longitudinalis linguæ inferior is a narrow band situated on the under surface of the tongue between the Genioglossus and Hyoglossus.

Course

It extends from the root to the apex of the tongue: behind, some of its fibers are connected with the body of the hyoid bone; in front it blends with the fibers of the Styloglossus.

Movement of material through the GI tract is dependent upon the coordinated activity of the longitudinal and smooth muscle of the gut.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.