Question

Lungs always contain a residual volume of air. why?

Answer 1

HI MATE

HERE IS UR ANSWER:

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Function. The residual volume functions to keep the alveoli open even after maximum expiration. In healthy lungs, the air that makes up the residual volume allows for continual gas exchange to occur between breaths.

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Answer 2

✔✔Lungs helps in respiration mainly In breathing

✔✔When air move into the lungs they purify the air with many reason the required air would be taken into our body and harmful air would be carried out .

✔✔By breathing process

✔✔That's why lungs contain residuals of air in it

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