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Doctors Medicines MCQs Q&A

The volume of air inspired or expired during normal breathing is:

The volume of air inspired or expired during normal breathing is: Correct Answer Tidal volume

Explanation:

  • Tidal volume:
  • The air that normally goes in and out of the lungs during breathing (500 ml). 
  • A healthy man inspires or expires approximately 6000 to 8000 mL of air per minute

Additional Information

  • Inspiratory  Reserve Volume (IRV): Additional volume of air, a person can inspire by a forcible inspiration. This averages 2500 mL to 3000 mL.
  • Expiratory Reserve Volume (ERV): Additional volume of air, a person can expire by a forcible expiration. This averages 1000 mL to 1100 mL.
  • Residual Volume (RV): Volume of air remaining in the lungs even after a forcible expiration. This averages 1100 mL to 1200 mL.

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