The primary organs of the respiratory system are lungs, which function to take in oxygen and expel carbon dioxide as we breathe.
(Image credit: Leonello Calvetti | Shutterstock)
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Masks Protect Against Colds, FluA new study finds surgical masks are your best protection against a cold or the flu.
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One-Third of U.S. Schools in 'Air Pollution Danger Zone'One in three U.S. schools located in pollution zones of major roads.
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Mystery of Alligator Movement SolvedAlligators can move their lungs inside their bodies to help them dive and surface.
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Baddest Dinos Breathed Like BirdsFossils show therapod dinosaurs had breathing structures like modern diving birds.
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Radar Device to Spot Enemies Through WallsA new radar device helps the military spot enemies.
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California Farm Town Is Nation's SmoggiestFarm town suffers from urban pollutants trapped by local mountains.
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Beetle Breathing Highly Complex, Study FindsComplex breathing apparatus found in ground beetles.
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Human Heartbeats and Breathing Can Synchronize -
Rats on a Road Trip Reveal Pollution's Risk to HeartRats on a road trip have underscored what scientists have long suspected about highway driving—car and truck exhaust is just as bad for your heart as it is for your lungs.
