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NEET2026BiologyChapterActual

After a normal expiration, a certain volume of air remains in the human lungs. Which of the following correctly represents this volume?

Options

  1. ATV + IRV
  2. BERV + RV
  3. CTV + ERV
  4. DIRV + ERV + RV

Correct answer

B. ERV + RV

Step-by-step solution

After a normal expiration, the volume of air that remains in the lungs is known as the Functional Residual Capacity (FRC). Functional Residual Capacity is the sum of Expiratory Reserve Volume (ERV) and Residual Volume (RV). FRC = ERV + RV Answer: ERV + RV

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