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MSD Manual
Consumer Version
HEALTH TOPICS
HEALTHY LIVING
SYMPTOMS
EMERGENCIES
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COMMENTARY
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HEALTH TOPICS
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Quick Facts: Lung and Airway Disorders
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Biology of the Lungs and Airways
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Biology of the Lungs and Airways
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Overview of the Lungs
What are the lungs?
How does breathing work?
What happens to air in the lungs?
What can go wrong with your lungs and breathing?