Go to the books!: This is a hugely complex question which can not be summarized in 10 lines of space that I have been given here. So you need to study it in a book on physiology of human respiration.
Answered 1/4/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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