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Question 9255
NEET Biology · Medium

Breathing and Exchange of Gases: Pleural cavity MCQ

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Pleural cavityMediumQuestion 9255

Question

Under normal conditions, the pleural cavity helps breathing mainly by allowing:

  1. A
    Frictionless lung movement
    Correct
  2. B
    Direct filling with inhaled air
  3. C
    RBC maturation
  4. D
    Hormone storage

Correct answer

Frictionless lung movement

Explanation

Pleural fluid reduces friction between pleural layers as lungs expand and contract.

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