Bellows action: The volume of the lungs changes with the movement of the diaphragm. This is like a bellows action. As the diaphragm moves down, the lungs expand, while diaphragm moves up, air is released from the lung. The movement of the lung is a passive movement due to action of the diaphragm.
Answered 10/24/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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