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How do the lungs protect themselves from dust and dirt in the air?

To protect themselves from dust and dirt in the air, the lungs produce mucus. Mucus traps the dust and dirt so that it gets coughed up and out of the lungs. Breathing in dust, dirt and other particles in the air can damage the lungs, but luckily they're pretty good at keeping themselves clean and healthy. 

Continue Learning about Functions of the Lungs

How do the right and left lung differ?
National Athletic Trainers' AssociationNational Athletic Trainers' Association
The right lung has three lobes, and the left lung has two. The left lung also has a cardiac notch, w...
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What are the lungs made of?
Paul M. Ehrlich, MDPaul M. Ehrlich, MD
The lungs are composed of various specialized cells and tissues -- not just simple tubes or pipe...
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What is the capacity of an average set of lungs?
Pam GroutPam Grout
Your lungs are capable of holding up to seventeen pints of air per breath. When you breathe in only ...
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How does our respiratory system work?
RealAgeRealAge
Think of your respiratory system as an upside-down tree. When air enters your body, it goes down you...
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.