The lumps on your tongue are taste buds; there are also taste buds in three places in your throat. Not all tastes are detected by the same taste buds. Each group of taste buds in different areas of your tongue and throat helps you to recognise different types of taste sensations: sweet, sour, salty and bitter. When you put a piece of food in your mouth, the chemicals in it alert the taste buds to carry "taste messages" through your nerve cells to your brain. It is in your brain that you actually become aware of the taste of something.

The lumps on your tongue are taste buds; there are also taste buds in three places in your throat. Not all tastes are detected by the same taste buds. Each group of taste buds in different areas of your tongue and throat helps you to recognise different types of taste sensations: sweet, sour, salty and bitter. When you put a piece of food in your mouth, the chemicals in it alert the taste buds to carry "taste messages" through your nerve cells to your brain. It is in your brain that you actually become aware of the taste of something.

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