How the alveoli design maximise the exchange of gases

1.	How the alveoli design maximise the exchange of gases
Answer» Alveoli are present at the terminal of bronchioles. They are balloon shaped structures which increase the surface area for the exchange of gases and are richly supplied with blood vessels. Thank you?? Alveoli is a balloon like structure. The alveoli provide a surface for the exchange of gases can take place .The wall of the alveoli contain extensive network of blood capillaries and have thin wall which maximise the exchange of gases.

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