Taste buds have microscopic hairs called microvilli that are extremely sensitive. Those tiny hairs communicate with the brain about how something tastes, letting you know whether it's sweet, sour, bitter, or salty.
What are taste buds?
Taste buds are relatively small sensory organs on the tongue that communicate with the brain about taste.
These organs contain nerve endings that react chemically to the food you eat.
Because humans have so many taste buds, they can detect a variety of flavors in five categories: sweet, sour, salty, bitter, and flavorful.
As per the tongue map, tongue have sweet taste in the beginning, salty and sour in the middle, and bitter at the end. It's possibly the most well-known emblem in the study of taste.
Thus, in this way the tongue have taste sensation in the different regions.
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