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        Part of Idaho PTV
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        Taste | D4K

        This short video segment from IdahoPTV's D4K shows a diagram of the parts of the tongue. It explains how papillae, taste buds and tiny hairs work to help you decide if food is sweet, sour, bitter or salty.

        Visit the D4K companion Web site to learn more about Taste: D4K: “Five Senses"

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