Air that remains in lungs after most powerful expiration is _______(a) inspiratory air(b) residual air(c) dead space air(d) tidal airThis question was addressed to me by my college director while I was bunking the class.My doubt stems from Mechanism of Breathing-2 topic in section Breathing and Exchange of Gases of Biology – Class 11

Air that remains in lungs after most powerful expiration is _______(a)

1.	Air that remains in lungs after most powerful expiration is _______(a) inspiratory air(b) residual air(c) dead space air(d) tidal airThis question was addressed to me by my college director while I was bunking the class.My doubt stems from Mechanism of Breathing-2 topic in section Breathing and Exchange of Gases of Biology – Class 11
Answer» The correct choice is (b) residual air The explanation is: Residual air is the VOLUME of air remaining in the lungs even after most forceful expiration. It cannot be expelled out of the lungs. Its value on an average in adult MAN is approximately 1200 ML.

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