What causes the movement of air in and out of the lungs? - ProProfs Discuss
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What causes the movement of air in and out of the lungs?

Asked by Jeline, Last updated: Oct 29, 2024

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2 Answers

John Adney

John Adney

John Adney
John Adney

Answered Nov 28, 2016

Gaseous exchange is dependent on diffusion. diffusion depends on diffusion gradient i.e. difference in gaseous concentration between two regions. for air to move in and out of the lungs, the gaseous pressure in the lungs is not the same as atmospheric pressure.
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John Smith

John Smith

John Smith
John Smith

Answered Nov 23, 2016

Difference in pressure
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