Transverse muscle of tongue

Illustration of the transverse muscle of the tongue from Gray's Anatomy

The Transverse Muscle of Tongue is an intrinsic muscle of the tongue that assists in the changing of the tongue's shape. It is not visible from the surface, as it is located within the substance of the tongue.

Anatomy

The transverse muscle of the tongue originates from the median fibrous septum, which divides the tongue in the midline, and extends laterally to insert into the submucous fibrous tissue at the sides of the tongue. It is positioned superior to the vertical muscle and inferior to the superior longitudinal muscle.

Function

The transverse muscle of the tongue works in conjunction with other muscles to allow the tongue to change its shape for activities such as speaking, swallowing, and cleaning the oral cavity. When the transverse muscle contracts, it causes the tongue to narrow and elongate.

Clinical Significance

Damage to the transverse muscle of the tongue can result in difficulty with speech and swallowing. This can occur due to trauma, surgery, or neurological conditions that affect the nerves supplying the tongue muscles.

See Also

• Tongue
• Intrinsic muscles of the tongue
• Extrinsic muscles of the tongue