Question

What is residual volume ? How does it helps in exchange of oxygen ?​

Answer 1

Explanation:

residual volume means the volume remain in the lungs after forceful expiration.it protects in the large fluctuations of oxygen and carbon dioxide in lungs.also It Nevers empty in lungs.

hope it is helpful.......

Answer 2

Residual volume is the amount of gas remaining in the lungs at the end of the maximum exhalation.

Residual volume is important because it prevents large fluctuations in respiratory gases like oxygen and carbon dioxide.The residual volume cannot be measure because it cannot become empty

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