Assertion: tongue's surface | /r/HasProperty | undersurface
Facets:
Source sentences:
text: Traumatic lesions on the ventral surface (undersurface) of the tongue, especially the lingual frenulum, can be caused by friction between the tongue and the mandibular central incisor teeth during cunnilingus and other oral sexual activities (such as anilingus) in what is sometimes known as cunnilingus tongue or cunnilingus syndrome.
text: It usually presents only on the dorsal 2/3 and lateral surfaces of the tongue, but less commonly an identical condition can occur on other mucosal sites in the mouth, such as the ventral surface (undersurface) of the tongue, mucosa of the cheeks or lips, soft palate or floor of mouth; usually in addition to tongue involvement.