Lungs 101 | National Geographic

The lungs replenish the body with life-giving oxygen. Learn about the anatomy of the lungs, how the organs make respiration possible, and how they are vulnerable to illnesses.
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Read more in "Lungs and How They Fuel Our Bodies With Oxygen"
https://on.natgeo.com/2MnlSqx

Lungs 101 | National Geographic
https://youtu.be/B75kBvjJink

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Видео Lungs 101 | National Geographic канала National Geographic