You use the respirerotry system. To be precise when air is to be sucked in, the brain askes the lungs to expand, which naturally creates a low pressure inside the lungs. Similarly when the lungs are compressed the air inside is flushed out.
The pores of Kohn are small openings in the walls of alveoli in the lungs that facilitate the interconnection between adjacent alveoli. Their primary purpose is to allow for the equalization of air pressure and the sharing of air between neighboring alveoli, which improves gas exchange efficiency. Additionally, they help in maintaining lung stability by providing alternate pathways for airflow, especially if some alveoli are blocked or collapsed. This interconnectedness enhances overall respiratory function.
Alveolar means pertaining the the alveolus (plural alveoli), the small air sacs in the lungs.
Surfactant is similar to a detergent, it keeps the fluid coating the lining of the alveoli from creating surface tension. This allows the alveoli to expand without hindrance, and allows greater air flow.
Gas exchange between the air and the blood occurs in the alveoli of the lungs. The alveoli are tiny air sacs where oxygen from the air diffuses into the blood and carbon dioxide from the blood diffuses into the air to be exhaled.
Oxygen is exchanged from the air in the alveoli into the blood in the capillaries, while carbon dioxide is exchanged from the blood in the capillaries into the air in the alveoli during the process of respiration.
You do not have any such cubes in your respiratory system.
The exchange of gases between blood and air occurs in the alveoli of the lungs. Oxygen from the air diffuses into the bloodstream, while carbon dioxide from the blood diffuses into the air in the alveoli to be exhaled.
The exchange of oxygen and carbon dioxide between the air and blood occurs in the alveoli of the lungs. Oxygen from the air diffuses into the blood in the capillaries surrounding the alveoli, while carbon dioxide from the blood diffuses into the alveoli to be exhaled.
Alveoli is an air passage
Alveoli alveoli - air sacs in your lungs
alveoli
difference between laminar air flow & reverse laminar air flow