In everyday life, a person very rarely pays attention to the digestive system, ignoring not only the signals of his body, but also the arguments of his reason, not trying to figure out what is the significance of the digestive system for well-being. An insufficient or excessive amount of food, as well as its composition, all this affects one of the most important systems in the human body.
Digestion begins in the mouth
Trying to explain the importance of the digestive system, it is worth immediately pointing out that the digestive process begins as soon as a piece of cake or Brussels sprouts enter the person’s mouth. A large number of glands secreting saliva is located in the oral cavity. It is saliva that protects tooth enamel, ensuring the consistency of its composition. In addition, washing the entire cavity, saliva provides disinfection, being a natural, albeit not strong, antibiotic. A small amount of calcium is produced in the salivary glands, which nourishes tooth enamel.
It is worth saying here that saliva is produced only in the daytime, which means that at night the bacteria have every chance of increasing their population. That's why toothbrushing is so important - evening and morning.
Esophagus and intestinal tube
Chewed food, the fermentation and digestion of which has already begun in the oral cavity, after ingestion enters the esophagus. The diameter of this tube is normally about 2 centimeters.
From the esophagus, a food lump enters the stomach, which has a bizarre shape of a bag with oblique seams. It is located diagonally from left to right, while the left side is much higher than the right.
Immediately after the stomach, the small intestine begins, disordered located in the abdominal cavity. The length of this body reaches seven meters. It is in the small intestine that the most important thing happens - the assimilation of all the useful elements that a person absorbs. In addition to its amazing length, it also has a huge area. After all, every millimeter of the intestine is covered with thin fibers, in which the metabolism takes place. If all these villi were straightened, then the intestines would increase in length by two and a half times. It is from the intestines that nutrients enter the bloodstream, because each villus contains a blood vessel. This brings us closer to understanding the importance of the digestive system.
Biology: Grade 6
The upper intestines are sterile, while the stomach and lower parts of the large intestine contain large amounts of various types of bacteria that aid digestion. Modern science knows for certain that most of the immune system is concentrated in the stomach and the state of microflora most directly affects human health.
Perhaps even a student should know the answer to the question that we are considering in this article. Namely: "What is the significance of the digestive system?" (6th grade). A sixth grader should have an idea of its structure, as well as the fact that this system is full of nerve endings, glands that secrete enzymes and hormones, each of which is important for health.
What is the importance of the digestive system?
Briefly answer this question as follows. An integral part of the digestive system are microorganisms that inhabit it in certain areas. They promote the digestion, breakdown and absorption of minerals, proteins and carbohydrates. And some even produce vitamins. Thus, the main function of this system is the breakdown and digestion of nutrients.
Perhaps understanding the importance of the digestive system will contribute to a more careful attitude to it, taking care of it, and also help you change your eating habits, abandoning bad ones and following healthy ones.