How does the respiratory system work and work?
| June 25, 2021 | education
The human respiratory system consists of the nasal cavity, trachea, bronchi and lungs. The lungs contain numerous pulmonary vesicles.
As a result of inhalation, air first enters the nasal cavity, then into the trachea and bronchi. And then – into the lungs, which are composed of numerous pulmonary vesicles. Inside these bubbles, blood is constantly moving through the blood vessels.
When fresh air fills the lung vesicles, the blood takes oxygen particles from this air, and gives off carbon dioxide particles. Then the blood carries oxygen to other organs of the human body, and the air with a high content of carbon dioxide remaining in the lungs is exhaled.
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