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== Tongue ==
[[File:HistologicChapter11Tongue-anatomy.jpg|thumb|200px|Tongue Anatomy]]
The tongue is divided anatomically into an anterior 2/3 or body, and a posterior 1/3 or root by a posteriorly oriented V-shaped groove, the sulcus terminalis. A pit, the foramen caecum, is located at the apex of the sulcus terminalis. It represents the embryonic point of origin of the thyroid gland.
