Question

What is the significance of residual volume of Air that lungs always contain.

Answer 1

Explanation:

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. The oxygen-depleted residual air is then mixed with newly inhaled air to improve gas exchange at the

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Answer 2

• during breathing cycle when air take In and let out lungs always contain residence volume of air