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Which one of the following respiratory volumes of human lung is the lowest?

Options

  1. AResidual volume
  2. BTidal volume
  3. CInspiratory reserve volume
  4. DExpiratory reserve volume

Correct answer

B. Tidal volume

Step-by-step solution

The normal respiratory volumes for a healthy adult human are as follows: Tidal volume (TV) is the volume of air inspired or expired during normal respiration, which is approximately 500 mL. Inspiratory reserve volume (IRV) is the additional volume of air a person can inspire by a forcible inspiration, which is approximately 2500 to 3000 mL. Expiratory reserve volume (ERV) is the additional volume of air a person can expire by a forcible expiration, which is approximately 1000 to 1100 mL. Residual volume (RV) is the

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