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Biology · PYQ NEET UG 2017

हिन्दी

Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of

  1. residual volume
  2. inspiratory reserve volume
  3. tidal volume
  4. expiratory reserve volume

Correct answer · Option 1

residual volume

Explanation

Residual volume is the volume of air remaining in the lungs even after a forceful expiration, preventing collapse.
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