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Question 9252
NEET Biology · Medium

Breathing and Exchange of Gases: Pressure-volume relation MCQ

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Pressure-volume relationMediumQuestion 9252

Question

Breathing mechanics in simple terms illustrate that when thoracic volume increases, pressure inside the lungs tends to:

  1. A
    Decrease
    Correct
  2. B
    Increase
  3. C
    Remain fixed always
  4. D
    Become negative infinity

Correct answer

Decrease

Explanation

As per pressure-volume relation, an increase in thoracic volume causes a fall in intrapulmonary pressure.

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