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

What happens when lungs are diseased?
Columbia University Department of SurgeryColumbia University Department of Surgery
When lungs become diseased, they no longer can maintain the necessary exchange of oxygen and carbo...
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What is the role of the lungs?
Brigham and Women's HospitalBrigham and Women's Hospital
The lungs take in oxygen, which cells need to live and carry out their normal functions. The lun...
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What is the capacity of an average set of lungs?
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Think of your respiratory system as an upside-down tree. When air enters your body, it goes down you...
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