The structure of language

Responds better to sweet the tip (tip) of the tongue, sour on - its side edges, to the salt - region adjacent to the tip and bitter - root region. Like the buds smell, all taste buds are similar to each other, but in different parts of the language they are differently grouped. Still it remains a mystery how these cells perceive different stimuli. Scientists believe that the body develops so-called receptive substances, which feels differences in taste. So far in the experiments on animals were discovered only proteins that act as receptors of bitter and sweet. It is not excluded that different parts of language produce different amounts of receptor agonists. Although a clear understanding about how this happens scientists have not yet, but I'm pretty confident to assume that coming into contact with dissolved chemicals, the taste buds give out a corresponding electrical impulse which goes through the nerves to the brain.