How is food digested in the human body?

How is food digested? You'll know after watching this animation!

Food in the human body is slowly digested by the stomach and intestines, and after chewing, it will pass through the large intestine and enter the stomach, and the stomach will slowly digest it.

Digest food through the stomach. Food is eaten from the mouth, through the throat and stomach, to the stomach, and the stomach melts the food with stomach acid.

It first enters the esophagus through the mouth, then breaks down and digests in the stomach, and finally through the intestines to digest and absorb or excrete impurities.

The digestion of food in the human body is divided into 5 steps:

1. After we eat, the chewing of the teeth completes the first step of decomposition of food;

2. Chew these foods and swallow them into the stomach for digestion, and after about 3 hours, chyme (food digested by the stomach) is formed, and then enters the small intestine.

3. In the small intestine, the digestive juices from the liver and pancreas are mixed with food, and with the peristalsis of the small intestine, the mixture is constantly stirred and finally broken down into small molecules.

4. After that, the small molecule substances are absorbed by the epithelium of the small intestine and accompany the blood flow to the organs that need energy in various parts of the body.

5. The watery food residues and secretions left after digestion are then discharged into the large intestine (also called the colon), where the remaining liquid food residues are fermented by bacteria, and most of the water is absorbed in the large intestine. Solid, indigestible food debris is excreted as stool.

The food eaten by the human body is digested by the stomach, and the digestive function of the human body depends on the mechanical digestion of gastrointestinal movements and the chemical digestion of digestive enzymes.

Digestive juices contain a large number of digestive enzymes that promote the hydrolysis of sugars, fats, and proteins in food. It is changed from a large molecule substance to a small molecule substance so that it can be absorbed and utilized by the human body. Glucose, glycerol, glycerol-esters, amino acids, etc. are all small molecules that can be dissolved and can be absorbed by the small intestine.

The people take food as the sky, and we Chinese eat three meals a day forever. The food is very tasty, and now with the continuous development of society, more and more delicacies cater to people's taste buds. Sweet, sour, bitter and salty, the small fried skewers sold on the street, the hot pot in the hot pot restaurant, and all kinds of delicacies attract our taste buds.

Although it is delicious, you can't eat too much, otherwise it will cause a burden on your stomach and intestines, and we must absorb the nutrients in it when we eat perfect food. What we can't absorb will be excreted, so do you know how these delicious foods turn into nasty poop?

There are two digestive systems, one is physical and the other is magical. The physical digestive system is that our mouth chews the food, and our saliva is used to digest the food preliminarily, which can break down the starchy food in this step. It is at this step that we can taste the sweet, sour, bitter, spicy and salty food, all kinds of deliciousness.

After passing through the physical digestive system, it enters the magical digestive system, and the food enters the stomach.

There is gastric juice in the stomach, and the gastric juice includes gastric acid and digestive enzymes, and food is digested here, which can be understood as the digestion of large molecules into small molecules, and finally forms a chyme that you can easily absorb. The gastric peristalsis is then advanced into the small intestine. It is also the main site of digestion of all foods, responsible for the digestion of emulsified lipids.

The small intestine absorbs most of the water and nutrients in the small intestine, and the villi on the wall of the small intestine absorb these nutrients and enter the bloodstream. The whole process depends on the amount of food you eat, and it usually takes about three or four hours. However, this is not yet the final poop stage, after the food enters the small intestine, the last place is the large intestine.

The large intestine is here to absorb the last of all the water, and in the end, it will take 4 hours or more for these useless residues to form poop and be excreted. Some of the harder foods to digest will last in your body for 48 hours, such as fat and protein. Mushroom food can promote gastrointestinal peristalsis, so people with constipation can eat more mushroom food.

When food enters the stomach, there is very strong stomach acid in the stomach, so the food will be melted by the stomach acid, and then the melted food will enter the intestines and be absorbed little by little.

It is mainly through the digestive system to break down food step by step, and then distribute the nutrients in the food to all parts of the body, and finally digest all the food.

Your food is digested along your stomach and intestines, producing a lot of enzymes, which are then excreted from your body.

How is food digested? You'll know after watching this animation!

After intestinal digestion enzymes, digestive juices, and flora decomposition, digestion and absorption!