MCQ
Residual air is present in:
- ATrachea and Bronchi and bronchioles
- BLungs
- CBronchi and bronchioles
- DTrachea
✓
Answer
B. Lungs
Explanation:
Residual volume (RV) is the volume of air remaining in the lungs after maximum forceful expiration. In other words, it is the volume of air that cannot be expelled, thus causing the alveoli to remain open at all times. The residual volume remains unchanged regardless of the lung volume at which expiration was started.
Explanation:
Residual volume (RV) is the volume of air remaining in the lungs after maximum forceful expiration. In other words, it is the volume of air that cannot be expelled, thus causing the alveoli to remain open at all times. The residual volume remains unchanged regardless of the lung volume at which expiration was started.
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