how does the diaphragm help in pumping air?
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The diaphragm is a dome-shaped muscle underneath the lungs. When it contracts, oxygen rich air is pulled inside the lungs and when it relaxes, carbon dioxide is pumped out from the lungs.
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The diaphragm is a dome-shaped muscle underneath the lungs. When it contracts, oxygen rich air is pulled inside the lungs and when it relaxes, carbon dioxide is pumped out from the lungs.
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