Question

Residual volume means​

Answer 1

Answer:

Residual volume (RV) is the volume of air that remains in the lungs after maximum forceful expiration. In other words, it is the volume of air that cannot be expelled from the lungs. This volume remains unchanged regardless of the lung volume at which expiration was started.

Explanation:

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Answer 2

Answer: Residual volume (RV) is the volume of air that remains in the lungs after maximum forceful expiration