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Question 9208
NEET Biology · Medium

Breathing and Exchange of Gases: Inspiration MCQ

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InspirationMediumQuestion 9208

Question

As a result of inspiration, intrapulmonary pressure becomes:

  1. A
    Slightly lower than atmospheric pressure
    Correct
  2. B
    Much higher than venous pressure
  3. C
    Equal to alveolar CO2 pressure
  4. D
    Higher than atmospheric pressure

Correct answer

Slightly lower than atmospheric pressure

Explanation

Air enters lungs when intrapulmonary pressure falls just below atmospheric pressure.

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