Question

Объясните, как клетки, ткани, органы человека в результате вдоха получают кислород?​

Answer 1

Ответ:

Воздух, который мы вдыхаем, содержит кислород. Кислород – это газ, который снабжает организм энергией. Он попадает в наши кровеносные сосуды благодаря мелким воздушным пузырёчкам в наших лёгких.

Answer 2

Ответ:

Поступление в организм кислорода и удаление углекислого газа обеспечивает дыхательная система человека.

Транспорт газов и других необходимых организму веществ обеспечивается с помощью кровеносной системы.

Обмен О2 и CO2 между организмом и окружающей средой осуществляется благодаря ряду последовательных процессов:

Легочная вентиляция – обмен газами между окружающей средой и легкими.

Легочное дыхание – обмен газами между альвеолами легких и кровью.

Внутреннее (тканевое) дыхание – обмен газами между кровью и тканями тела.

Answer 3

How Cells, Tissues, and Organs of the Human Body Receive Oxygen through Inhalation

When we inhale, the respiratory system facilitates the process of oxygen delivery to the cells, tissues, and organs of the human body. Here's a step-by-step explanation of how this process occurs:

1. Inhalation: The process begins with inhalation, where we breathe in air through our nose or mouth. The air travels through the respiratory system and enters the lungs.

2. Gas Exchange in the Lungs: Inside the lungs, the inhaled air reaches tiny air sacs called alveoli. The alveoli are surrounded by a network of blood vessels called capillaries. Oxygen from the inhaled air diffuses across the thin walls of the alveoli and into the capillaries, while carbon dioxide, a waste product, moves in the opposite direction from the capillaries to the alveoli.

3. Transportation of Oxygen: Oxygen molecules bind to hemoglobin, a protein found in red blood cells. The oxygenated red blood cells then travel through the bloodstream, carrying oxygen to various parts of the body.

4. Delivery to Cells, Tissues, and Organs: As the oxygenated blood circulates through the body, it reaches the capillaries that supply different cells, tissues, and organs. At the capillary level, oxygen molecules detach from hemoglobin and diffuse into the surrounding tissues. This diffusion occurs due to the difference in oxygen concentration between the blood and the cells.

5. Cellular Respiration: Inside the cells, oxygen is utilized in a process called cellular respiration. During cellular respiration, oxygen reacts with glucose (sugar) to produce energy in the form of adenosine triphosphate (ATP), which is essential for various cellular functions.

6. Carbon Dioxide Removal: As cells use oxygen and produce energy, carbon dioxide is generated as a waste product. Carbon dioxide diffuses out of the cells and into the capillaries. It then binds to hemoglobin or dissolves in the plasma and is transported back to the lungs.

7. Exhalation: The final step is exhalation, where we breathe out. During exhalation, carbon dioxide-rich air is expelled from the lungs, completing the respiratory cycle.

In summary, when we inhale, oxygen from the inhaled air enters the bloodstream through the lungs. The oxygenated blood is then transported to cells, tissues, and organs, where it is utilized for cellular respiration. Carbon dioxide, a waste product, is removed from the cells and exhaled during the process of exhalation.

Please note that the information provided above is a general overview of the process. For more detailed and specific information, it is recommended to consult reliable medical sources.