Question

in the respiratory syestem what is the use of alveoli
answer correctly or I'll report you.​

Answer 1

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Oxygen breathed in from the air passes through the alveoli and into the blood and travels to the tissues throughout the body

Answer 2

Answer:

The respiratory system is incomplete without alveoli. The respiratory system is the part of your body that aids in the breathing process. Alveoli are tiny air sacs in the shape of a balloon. They are responsible for transporting oxygen and carbon dioxide $(CO_2)$ molecules into and out of your bloodstream.

Explanation:

• The respiratory system begins when we inhale air via our mouth or nose and ends with alveoli. The oxygen-rich air passes via the trachea and into one of the two lungs via the right or left bronchus, respectively.
• Carbon dioxide molecules, which are produced as a by-product of cellular respiration, diffuse back into the alveolus and are ejected from the body by the nose or mouth.
• Alveoli expand during inhalation as the diaphragm contracts, creating a negative pressure in the chest. As the diaphragm relaxes during exhale, the alveoli rebound (spring back).