What is resduel volume in our lungs ? what is its importance?
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Even when we forcefully exhale out some volume of air is left behind
This is called Residual volume
This is called Residual volume
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Residual volume is the amount of gas remaining in the lungs at the end of a maximal exhalation. Residual Volume is important because it prevents the lungs from collapsing. Even after we have expelled as much air as possible (expiratory reserve volume) gaseous exchange is still occurring by residual volume in the lungs
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