How do we taste food? Detailed answer

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How do we taste food? Detailed answer

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How do we taste food?

Taste is produced by the action of various soluble substances on the taste buds. If the atoms of a substance cannot move freely enough, we will not taste the substance. This is why we can only taste soluble substances. In animals living in water, taste buds are located on the surface of the body. For example, fish can taste with their tail fins!

In animals living on the earth's surface, taste buds are concentrated mainly in the mouth, while in humans they are only on the tongue. If you look at your tongue in a mirror, you will see that it is covered with small tubercles - papillae. Taste buds are located on the walls of these papillae.

The number of taste buds in animals depends on individual characteristics. For example, whales swallow whole schools of fish without chewing because they have very few or no taste buds. A pig has 5500, a cow has 35, and an antelope has 000 taste buds. A person has not so many of them - only 50.

On the human tongue, taste buds are distributed in different zones. Each zone perceives a certain taste. The back of the tongue is more susceptible to bitter. The sides are sensitive to sour and salty, and the tip of the tongue to sweet tastes. There are no taste buds in the center of the tongue. There is no taste at all in this place. The sense of smell plays an important role in the taste process. "Tasty or tasteless" - mostly determines our sense of smell. It's no wonder we find foods like coffee, tea, apples, oranges, and lemons delicious.

For example, when we drink coffee, we first experience warmth, then bitterness, and finally sweetness (if sugar has been added). We can say that coffee is really delicious only when its smell, having passed through the larynx and nose, will give a signal to our brain. If you pinch your nose with a clothes dryer, not only will you not be able to tell the taste of coffee, but you won't even be able to tell the difference between two completely different foods you eat or drink!

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Why do people faint?

You can often see how a hero or heroine in a movie or play faints when he hears bad news or is very frightened. We usually associate fainting with events of this kind. But fainting can occur as a result of many reasons. People can faint due to being in a cramped and poorly ventilated room, due to hunger, fatigue, severe pain, emotional distress, and many other reasons.

The immediate cause of fainting is a lack of blood supply to the brain. Since fainting occurs quite often, it is important to know what to do in such cases. A person who feels that he is about to faint should be laid down. If this is not possible, make him bend over so that his head is at the level of his knees. The purpose of these actions is to get more blood into the brain.

If someone faints, lay them down and loosen tight clothing. Lower his head or lift his legs. Again, the goal is to increase blood flow to the brain. When a person regains consciousness, he can be given something tonic, such as coffee, or give him a sniff of ammonia.

Sometimes a person loses consciousness for some other reason. For example, from a blow to the head, shock, sunstroke, overheating, or even poisoning.

There are two types of unconsciousness, in which different assistance is provided. One of them is the "red" unconscious state. At the same time, the face turns red, and the pulse increases. The patient should be placed with the head and shoulders slightly raised. A cold compress should be placed on the head.

In the case of "white" unconsciousness, the face turns pale, the skin becomes clammy, the pulse is weak. The patient should be laid down with his head down and covered with something to keep him warm.

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