What happens to intrapulmonary pressure during inhalation?

Decreases

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Increases

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Remains constant.

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Cannot be determined.

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Solution

The correct option is A
Decreases

The air always goes from the high-pressure region to low pressure. So, when intrapulmonary pressure decreases below atmospheric pressure, the air from outsides is taken in the lungs. Thus, inhalation takes place.

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