Body systemsQuestion 1695 of 1700
What happens in emphysema?
- The airways swell and narrow after a trigger
- Alveoli overfill, so less air is exchanged
- The lungs fill with blood after an injury
- The ribs soften and bend over time
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Correct answer: Alveoli overfill, so less air is exchanged
Less air exchange means less oxygen-rich blood in circulation.
Source: Nursing Assistant (Reuter), 11.10: Respiratory System
Questions last reviewed: 18 October 2026