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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Are Colds and Flu Worse in Women Than in Men?Colds and the flu may take a bigger toll on women than men, according to a new study based on people's reports of their own symptoms.
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Woman's Deadly Infection Linked to Horse RidingAn elderly woman in Seattle died from an infection that she appears to have contracted from a horse she rode, according to a new report.
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Aaaaaaah, Really? You Would Die If You Didn't Sigh -
MERS Vaccine Protects Camels, Which Is Good for PeopleCould treating camels help humans?
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Ancient Human-Size Fish Breathed with LungsBefore the dinosaur age, the coelacanth — a hefty, mysterious fish that now breathes with its gills — sported a well-developed lung, a new study finds.
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Photos: Ancient Fish Had Well-Developed LungLike its modern-day descendants, an ancient big fish known as a coelacanth had gills, but it also sported a well-developed lung, a new study finds.
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Light-Bulb Moment: Doctors Find True Cause of Toddler's CoughDoctors originally guessed, based on an x-ray, that the item in the 15-month-old girl's chest was a hairpin.
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Deep-Diving Dolphins Avoid 'Bends' with Powerful Lungs -
Child's Mysterious Paralysis Tied to New Virus
