What and what two are our breaths done?

Breathing is done by inhaling and exhaling.

Know. How do people breathe.

How is human breathing done? Written with rewards.

How is human breathing done?

I'll answer that there is a total of 1 reward.

Silent Xiaojun 0160

1) Respiratory motor phase (also called external breathing, including lung ventilation and pulmonary ventilation) The activity of the respiratory system, inhaling oxygen and exhaling carbon dioxide. During this phase, the concentration of oxygen in the respiratory tract, including the alveoli, is the highest, and the concentration of carbon dioxide is the lowest. (2) Transport stage Oxygen and carbon dioxide are transported with the blood circulation to the capillaries next to the interstitial fluid.

3) Respiration stage: Organic matter is oxidized and decomposed in the cell, releasing energy. During this phase, the concentration of gaseous oxygen in the cell is the lowest, and the concentration of carbon dioxide is the highest. The connection between the first and second stages is the exchange of gases across the alveolar and capillary walls.

In physics, there is an important principle that a substance diffuses from a place with a high concentration to a direction with a low concentration, and the difference in concentration is the driving force of diffusion. The concentration of oxygen in the alveoli is the highest, so, it diffuses to the blood, and the concentration of carbon dioxide in the blood is higher than the alveoli, so it diffuses to the alveoli, and the two gases diffuse in two different directions, forming a gas exchange. This process is also called lung ventilation.

The connection between the second and third stages is the exchange of gases across the cell membrane. Since the oxygen in the cell is consumed, it has the lowest concentration, and the oxygen in the tissue fluid diffuses into the cell; Similarly, as a result of respiration, the highest concentration of carbon dioxide in the cells diffuses to the interstitial fluid. This process is also called tissue ventilation.

The human breath consists of four parts:

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.

Are you asking about breathing exercises, or are you talking about breathing?

Respiratory exercise: refers to the exchange of gases between the body and the external environment (oxygen inhalation, carbon dioxide expulsion); It is divided into: pulmonary respiration, and internal respiration, the former refers to the gas exchange within the alveoli, and the latter refers to the gas exchange between tissue cells and the internal environment (tissue fluid).

Respiration: refers to the process by which organisms oxidize and decompose organic matter to release energy and produce CO2 or other metabolites. The meaning, of course, is to provide energy for life activities.

Link: Aerobic respiration: glycolysis (oxidation of glucose to pyruvate) Tricarboxylic acid cycle (complete oxidation of pyruvate to CO2 with the participation of water, and electrons) Oxidative phosphorylation (electrons eventually combine with oxygen to form water, releasing a large amount of energy).

Visible: Breathing movements are actually in the service of respiration.

1.Conception.

Respiration refers to the exchange of O2 and CO2 between the body and the external environment.

2.Basic process exchange.

The human respiratory process consists of three parts: external respiration (including pulmonary ventilation and pulmonary ventilation); transport of gases in the bloodstream; Internal respiration (tissue ventilation).

3.Physiological significance.

Maintain the relative stability of the content of 2 and CO2 in the body's circulation, so as to ensure the normal progress of metabolism and vital activities.

Section 1 Basic Essentials of Breathing.

This is because all the activities that the human body performs must be supplied with energy. Energy** in food. Specifically, energy is found in the three major nutrients: sugar, fat, and protein.

Middle. However, they must be released by oxidative decomposition, and to oxidize they must be oxygen, which is stored in very little in our body, only enough to be consumed in a few minutes. Therefore, the oxygen needed for the oxidation of the three major nutrients must be continuously ingested from the outside world through respiration.

At the same time, if our brain cells are deprived of oxygen for about 6 minutes, we will suffer fatal damage, and the heart will stop beating after more than 10 minutes of lack of oxygen. Therefore, breathing cannot be stopped for a moment. When the three major nutrients are oxidized in the body, a large amount of carbon dioxide is also produced.

Just like substances burning in nature and emitting black smoke, they are harmful to the human body. When a large amount of carbon dioxide accumulates in the human body, people will feel dizzy and have headaches.

pouting, and even causing serious consequences such as central paralysis. Therefore, we must breathe all the time, spit out the old and absorb the new, inhale fresh oxygen, and discharge carbon dioxide in order to ensure the normal life activities of the human body.

Why do we breathe? We can only survive by breathing, we need oxygen, and through breathing, we absorb oxygen and expel carbon dioxide. Because there is the breath of the lungs, there is the beating of the heart, so we live.

(1) Breathing movement refers to the rhythmic expansion and contraction of the chest, it includes two processes of inhalation and exhalation, and the completion of respiratory movement is mainly related to the contraction and relaxation of respiratory muscles The significance of respiratory movement is to complete the exchange of gas in the lungs and external gases Where process A refers to the ventilation of the lungs, which is achieved through respiratory movements

2) The b process refers to the exchange of gases within the alveoli, which is achieved by the diffusion of gases; The process refers to the transport of gases in the bloodstream; The process refers to the exchange of gases within the cells of tissues, which is achieved through the action of gas diffusion

3) Respiration refers to the process of organic matter in the cell being decomposed into carbon dioxide and water with the participation of oxygen, and at the same time releasing energy So the raw materials of respiration are organic matter and oxygen, and the products are carbon dioxide and water, and energy can also be released The expression is: organic matter (stored energy) + oxygen carbon dioxide water + water + energy

Therefore, the answer is: (1) ventilation of the lungs; Breathing exercises.

2) gas exchange within the alveoli; diffusion of gases;

3) Organic matter (storing energy) + oxygen, carbon dioxide, water + water + energy.

The process of gas exchange between the alveoli and the external environment is called lung ventilation, and the ventilation of the lungs is achieved through breathing movements, which include two processes: exhalation and inhalation

During inhalation, the diaphragm and intercostal muscles contract, causing the anterior, backward, left, right, and upper and lower diameters of the chest cavity to increase, and the lungs to expand, resulting in the air pressure in the lungs being less than the outside atmospheric pressure, and the outside gas entering the lungs, forming an active inhalatory movement; When the diaphragm and external intercostal muscles are relaxed, the ribs and sternum return to position due to their own gravity and elasticity, resulting in the shrinkage of the thoracic cage and the retraction of the lungs, resulting in the air pressure in the lungs being greater than the external air pressure, and the gas in the lungs is discharged from the lungs, forming a passive expiratory movement

So the answer is: exhale; Inhale; Thorax; Outside; within the lungs (alveoli).