Lead
The human body is a complex and wonderful machine, but this machine is our real source of life, the foundation of our survival, therefore, we should have a deep understanding of our body, make this machine more perfect, but also protect this machine, so that this machine can always operate normally.
But the human body is too complex, there are some body knowledge that you may not know, but this knowledge is so interesting, so can arouse people's interest, what is this knowledge?
1. The body's metabolism.
Metabolism is the core process of human life activities, is the foundation of life activities, metabolism includes both material metabolism and energy metabolism, they are an important part of human life activities.
Metabolism is the basic process of the body's life activities, is the mechanism for the human body to maintain a stable internal environment, and the basis for the human body to adapt to changes in the external environment.
The metabolism of the human body is a very complex process, including the synthesis and degradation of sugars, fats, proteins and other substances, the capture and release of energy, and there are many kinds of metabolism, such as the metabolism of cells, the metabolism of tissues, the metabolism of organs and so on.
2. The importance of the liver.
The liver is the largest organ of the human body, not only the center of human endocrine metabolism, but also the storage bank of energy in the human body, the liver can not only synthesize the substances needed by the human body, but also be able to store the substances needed by the human body, so the liver is called a "chemical factory".
The liver can synthesize substances such as glucose, protein, fat, etc., and can also synthesize plasma proteins, bile, biochemical enzymes, etc., which are important substances for human life activities, and the liver can also store vitamins, sugars, lipids, etc., these substances are needed by the human body, and when the human body needs these substances, the liver will provide them to the human body.
In addition, the liver can also decompose and metabolize various toxic substances, wastes, drugs, etc. in the human body, and can also excrete waste and harmful substances in the human body to protect the health of the human body, so the liver is also known as the "detoxification site", the liver is an important organ of the human body, and the human body cannot do without it.
3. Lymphatic system.
The lymphatic system is an important liquid circulation system of the human body, which is mainly composed of lymph glands, lymphatic vessels, lymphatic reflux, lymphocytes, etc., and forms a complete fluid circulation system with the blood circulation system, and the lymphatic system has three main functions.
The first is the immune function of the lymphatic system, which can identify and eliminate pathogenic microorganisms, foreign bodies, and harmful substances in the body, and can also remove wastes, metabolites, and cell secretions in the body, so as to protect the human body from pathogenic microorganisms.
Second, it is the regulatory function of the lymphatic system, the lymphatic fluid of the lymphatic system is rich in nutrients, proteins, cell secretions, etc., these substances are important substances for cell activities, and the lymphatic system can transport these substances to the cells around and help the cells complete the process of metabolism.
Third, it is the excretion function of the lymphatic system, which can remove wastes, metabolites, harmful substances, pathogenic microorganisms, etc. around the cells, and protect the human body from harm, so the lymphatic system is also known as the "human trash can".
1. The number of muscles in the throat.
The throat is an important organ in the human body, there are 29 muscles in the throat, these muscles are like a gun, can produce a variety of sounds, when we speak, these muscles will contract in a coordinated manner, produce a variety of different sounds.
The process of human pronunciation is very complex, and the pronunciation needs to pass through the muscles of the throat, the muscles of the tongue, the muscles of the cheeks, the teeth of the mouth, etc., and these muscles contract in a coordinated manner to produce a clear sound, and the larynx is the emitter of sound.
Second, the number of taste buds.
The human tongue has tens of thousands of taste buds, and the taste buds are divided into five taste buds, such as sour, sweet, bitter, salty and umami, and the number of taste buds of each taste is different, among which the number of sour taste buds is the largest, and the number of salty taste buds is the least.
These taste buds can sense the taste of food and transmit this information to the brain, which then determines whether the food is to our taste, so the taste buds are the taste receptors of the human body.
3. Bacteria in the gut.
There are hundreds of millions of bacteria in the human intestines, and these bacteria play an important role in human health, they can help the human body digest food, absorb nutrients, synthesize vitamins, and can also resist external pathogenic microorganisms to protect human health.
At the same time, the bacteria in the intestine can also regulate the immune function of the human body, protect the human body from pathogenic microorganisms, and maintain the stability of the internal environment of the human body, so the bacteria in the intestinal tract are also known as the "intestinal guardians".
Second, the number of bones.
The human body has 206 bones, bones are the support of the human body, which can support the weight of the human body, and can also protect the internal organs of the human body.
Without bones, the human body becomes weak and unable to act autonomously, so bones are an important part of the human body and are the foundation of the human body.
3. The number of breaths.
The human body breathes an average of 25,000 times a day, and the number of breaths per day is huge, so people should pay attention to protect their lungs, do not inhale harmful substances, and protect their health.
3. Energy expenditure of metabolism.
The daily metabolic energy expenditure of the human body is 1300 kcal, which is a very large number, so people need to consume enough nutrients every day to meet their energy expenditure.
1. The weight of the human body that sweats every day.
The weight of the human body sweating every day is 500 grams, sweating is a way for the human body to excrete waste products, people will excrete waste products from the body through sweat every day, so people should pay attention to maintaining physical hygiene.
2. The weight of the saliva that the human body spits out every day.
The weight of saliva spit out by the human body is 200 grams per day, saliva is the digestive juice of the human body, it can help the human body digest food, and people will secrete saliva when they eat.
3. The acidity of human stomach acid.
The acidity of human gastric acid is PH=1, and gastric acid is an important digestive juice of the human body, which can decompose proteins and other substances in food and play a role in digestion.
epilogue
The human body is a complex and wonderful machine, and people should have a deep understanding of their own body, so that this machine can be more perfect, and also protect this machine, so that this machine can always operate normally.