Question

hello friends and guys.....:)
explain why when air is taken and let out during breathing the lungs always contain a residual volume of air?
pls answer
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Answer 1

During the breathing cycle, when air is taken in and let out, the lungs always contain a certain residual volume of air so that there is sufficient time ‘for the oxygen absorbed’ into the blood and ‘for the carbon dioxide to be released’ from the blood.

Hope helps

Answer 2

HERE'S YOUR ANSWER

The lungs always contain a residual volume of air so that during breathing cycle there is sufficient time for oxygen to be absorbed and for the carbon dioxide to be released. Residual Volume is important because it prevents the lungs from collapsing.

hope it helps you

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