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Taste buds. Illustration of the taste bud regions on a human tongue. Taste buds contain the taste receptors. They are located around the small structures known as papillae found on the upper surface of the tongue, soft palate, upper oesophagus, the cheek and epiglottis. The taste buds are responsible for detecting five taste perceptions: sweet (blue), salty (green), sour (purple), bitter (yellow) and umami.
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