Transverse muscle of tongue

The transverse muscle of tongue (transversus linguae) is an intrinsic muscle of the tongue. It consists of fibers which arise from the median fibrous septum and pass lateralward to be inserted into the submucous fibrous tissue at the sides of the tongue.

Transverse muscle of tongue
Coronal section of tongue, showing intrinsic muscles.
Details
Origin	median fibrous septum
Insertion	sides of the tongue
Nerve	hypoglossal nerve
Actions	makes the tongue narrow and elongated
Identifiers
Latin	musculus transversus linguae
TA	A05.1.04.108
FMA	46695
Anatomical terms of muscle

The transverse lingual muscle is innervated by cranial nerve XII, the hypoglossal. This muscle functions to narrow and elongate the tongue.