Lingual Frenum passes from the floor of the mouth to the ventral border of the tongue.
What is lingual ferum?
The frenulum of the tongue or tongue web (also lingual frenulum or frenulum lingua; also fraenulum) is a small fold of mucous membrane extending from the floor of the mouth to the midline of the underside of the tongue.
The lingual frenum is a fold of mucous membranes connecting the ventral tongue to the floor of the mouth.
In general, the lingual frenum serves multiple roles; its main function is to support the tongue and aid in limiting its movement in different directions.