During Exhalation, the Pressure Inside the Lungs

question 77

Multiple Choice

During exhalation, the pressure inside the lungs

• A) initially is higher than atmospheric pressure, but drops as air leaves the body.
• B) must be maintained higher than atmospheric pressure.
• C) must be maintained lower than atmospheric pressure.
• D) gradually elevates as air enters the lungs.
• E) rapidly elevates.

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