Mostly diaphragm: The diaphragm is the primary driver of inspiration, whether it be typical passive inspiration or taking a deep breath. The chest wall help as well, to a less extent.
Answered 7/20/2012
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A doctor has provided 1 answer
4 doctors weighed in across 2 answers
A doctor has provided 1 answer
4 doctors weighed in across 2 answers
A doctor has provided 1 answer
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