NCIt synonyms : Dorsal Surface of Tongue; Dorsum of the Tongue;
NCIt definition : The superior, convex surface of the tongue, which is divided by the sulcus terminalis
into anterior or oral (presulcal) and posterior or pharyngeal (postsulcal) parts.
The mucosal membrane of the anterior two-thirds contain numerous varieties of papillae
while the posterior one-third has no papillae and a cobblestone appearance due to
underlying nodules of lymphoid tissue.;