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How do lungs work?
- Lungs are the organs, present in human, for conducting the process of respiration and for the purification of blood.
- The gaseous exchange takes place in the alveoli of the lungs. Alveoli are tiny, balloon-shaped air sacs present at the very end of the respiratory tract and are arranged in clusters throughout the lungs.
- There are millions of alveoli in the lungs of a human which provides a very large surface area for the exchange of gases. The availability of large surface area maximizes the exchange of gases in human beings.
- The oxygenated air diffuses from the alveoli into the blood. When the blood is circulated in different parts of the body, the oxygen is carried to all cells and tissues through this blood.Carbon dioxide is produced as a waste product during respiration. It is diffused into the blood which brings back the carbon dioxide into alveoli and then it is exhaled out of the body through nostrils.
(Refer image for more information)
Updated on: 20-Mar-2023
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