The four continuous processes of human respiration, the whole process of breathing?

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The human body's breathing process is composed of 4 links:

Lung ventilation: the exchange of gases between the lungs and the outside environment.

Pulmonary ventilation: the exchange of gases between the alveoli and the blood in the pulmonary capillaries.

Transport of gases in the bloodstream.

Tissue ventilation, that is, the exchange of gas between tissue cells and tissue capillaries, tissue ventilation is also called internal respiration, and lung ventilation and pulmonary ventilation are also called external respiration.

Respiration refers to the process of gas exchange between the body and the external environment. The human breathing process consists of three interconnected steps:

external breathing, including pulmonary ventilation and pulmonary ventilation;

Transport of gases in the bloodstream.

Internal respiration refers to the exchange of gases between tissue cells and blood.

The complete respiration process is completed by three interconnected links: 1. External respiration, that is, pulmonary respiration, including pulmonary ventilation and pulmonary ventilation The so-called pulmonary ventilation refers to the gas exchange process between the outside air and the lungs; Lung ventilation refers to the process of gas exchange between the alveoli and capillaries 2, the transport of gases in the blood, that is, the process of blood transporting oxygen and carbon dioxide 3, and internal respiration, that is, tissue ventilation, is the process of gas exchange between blood and tissues and cells

Inspiratory stroke (inhalation of oxygen to the lungs) - compression stroke (the lungs do contraction exercises to increase air pressure so that blood flow to the alveoli, capillaries ** the need for various blood circulation) - power stroke (we stretch out our hands, kick and kick, the cells consume oxygen and turn it into carbon dioxide and waste) - exhaust stroke (exhale, expel carbon dioxide).

Gas exchange between the human body and the outside world.

Gas exchange in the lungs and alveoli.

Gas exchange between alveoli and capillaries.

Gas exchange between capillaries and tissue cells.

Respiration refers to the contraction of the diaphragm and compartment muscles, the expansion of the chest cavity volume of hunger, and the enlargement of the lungs, which is inhalation, and the exhalation refers to the relaxation of the diaphragm and intercostal muscles, the reduction of the thoracic volume, and the reduction of the lungs.

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The human respiratory process consists of three interrelated links: external respiration, including pulmonary ventilation and pulmonary ventilation; Transport of gases in the bloodstream. Internal respiration refers to the exchange of gases between tissue cells and blood.

The correct order is: lung ventilation Gas exchange at the alveoli Transport of gases in the blood Gas exchange at the tissues.

Respiratory:

Lung capacity represents the size of a person's potential breathing capacity, which can reflect a person's respiratory function and health status to some extent, and measuring lung capacity is one of the commonly used methods to measure respiratory function.

The respiratory system is made up of the ventilation tubes in the nasal cavity and throat, two lungs, and a long trachea that connects the throat to the lungs. The bottom end of the trachea divides into two bronchial tubes, each of which is connected to one of the lungs. The bronchi are further subdivided into smaller trachea, first the bronchioles and then the terminal bronchioles.

The high school stage (aerobic respiration) can be divided into 3 stages.

Stage 1: One molecule of glucose is decomposed into two molecules of pyruvate, which releases a small amount of energy and reduces hydrogen.

Phase II; Pyruvate and water are completely decomposed into carbon dioxide and reduced hydrogen, releasing a small amount of energy.

Stage 3: Reduced hydrogen and oxygen combine into water, releasing a large amount of energy.

1. Lung ventilation: gas exchange between the lungs and the external environment;

2. Pulmonary ventilation: gas exchange between alveoli and pulmonary capillary blood;

3. Gas transportation: gas transportation in the blood;

4. Tissue ventilation, that is, between tissue cells and tissue capillaries.

i.e. (1) ventilation of the lungs; (2) gas exchange in the alveoli; (3) transport of gases in the blood; (4) Gas exchange in tissues.

Ventilation of the lungs. Lung ventilation. Gas transportation. Tissue ventilation.

The complete respiration process is completed by three interconnected links: 1. External respiration, that is, pulmonary respiration, including pulmonary ventilation and pulmonary ventilation The so-called pulmonary ventilation refers to the gas exchange process between the outside air and the lungs; Lung ventilation refers to the process of gas exchange between the alveoli and capillaries 2, the transport of gases in the blood, that is, the process of blood transporting oxygen and carbon dioxide 3, and internal respiration, that is, tissue ventilation, is the process of gas exchange between blood and tissues and cells

When the human body inhales, the diaphragm and intercostal muscles contract, the thoracic cage expands, the diaphragm descends, the negative pressure in the chest cavity decreases, and the fresh air rich in oxygen from the outside enters the alveoli through the airway, and the oxygen enters the capillary through the alveolar wall, and the carbon dioxide produced by tissue metabolism in the capillary enters the alveoli. <

When the human body inhales, the diaphragm and intercostal muscles contract, the thoracic cage expands, the diaphragm descends, the negative pressure in the chest cavity decreases, and the fresh air rich in oxygen from the outside enters the alveoli through the airway, and the oxygen enters the capillary through the alveolar wall, and the carbon dioxide produced by tissue metabolism in the capillary enters the alveoli. When the human body exhales, the diaphragm and intercostal muscles relax, and the rib cage relies on elasticity**, and carbon dioxide is excreted through the airways. In this way, one inhalation and one exhalation constitute a breath, and the human body relies on the constant breathing movement for gas exchange to meet the needs of the body's metabolism and maintain life.

1. The first is the gas exchange between the outside air and the alveoli and between the alveoli and the capillaries, which is called external respiration.

2. The second is the transportation of gas in the blood, through the operation of the blood, on the one hand, the oxygen ingested by the lungs is sent to the tissue cells in time. On the other hand, carbon dioxide produced by tissue cells is sent to the pulmonary capillaries for excretion.

3. The third is the gas exchange between blood and tissue cells, when the human body inhales, the diaphragm intercostal muscles contract and expand, the septum roof descends, the negative pressure in the chest cavity decreases, and the outside is rich in fresh air with oxygen, which enters the alveoli, and the oxygen enters the capillary through the alveolar wall, and the tissue metabolism in the capillaries produces carbon dioxide. Entering the alveoli, the human body exhales the diaphragm and intercostal muscles to relax, and the chest cage relies on elasticity to change hunger and prudence, and carbon dioxide is discharged from the body through the breath tract of the human body.