Question

describe the mechanism of exchange of gases in the alveolus of the lung.​

Answer 1

Answer:

Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.

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Answer 2

Answer:

each lung contains millions of alveoli are very thin and surrounded by very thin blood capillaries