Functional residual capacity is the volume of air present in the lungs:
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Correct answer: After normal expiration
Functional residual capacity is the air remaining in the lungs after a normal expiration. It helps maintain alveolar gas exchange.
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More Lung Volumes and Capacities questions
- Which lung capacity includes residual volume?
- Total lung capacity is defined as:
- Which lung volume increases in obstructive lung disease?
- Expiratory reserve volume is the volume of air that:
- Which capacity equals tidal volume plus inspiratory reserve volume?
- Which lung volume is most affected in restrictive lung disease?