Taste buds cover the surface of small, nipple-like projections called, papillae, which are easily visible. There are a number of problems that can develop with the tongue. These include: Nerve damage that inhibits tongue movement and can make speaking and chewing difficult
In the decades since the tongue map was created, many researchers have refuted it. Indeed, results from a number of experiments indicate that all areas of the mouth containing taste buds – including several parts of the tongue, the soft palate (on the roof of your mouth) and the throat – are sensitive to all taste qualities.
While some parts of the tongue may be able to detect a taste before the others do, all parts are equally capable of conveying the qualia of all tastes. Threshold sensitivity may differ across the tongue, but intensity of sensation does not.This diagram with labels depicts and explains the details of Taste Buds On Tongue Diagram.