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NEETZoologyBreathing and Exchange of Gases

How is Total Lung Capacity calculated?

Options

  1. ABy adding residual volume, tidal volume, and expiratory reserve volume
  2. BBy adding residual volume and vital capacity
  3. CBy subtracting residual volume from vital capacity
  4. DBy subtracting tidal volume and inspiratory reserve volume from vital capacity

Correct answer

B. By adding residual volume and vital capacity

Step-by-step solution

Inspiratory Capacity (IC): Total volume of air a person can inspire after a normal expiration. This includes tidal volume and inspiratory reserve volume ( TV+IRV). Expiratory Capacity (EC): Total volume of air a person can expire after a normal inspiration. This includes tidal volume and expiratory reserve volume (TV+ERV). Functional Residual Capacity (FRC): Volume of air that will remain in the lungs after a normal expiration. This includes ERV+RV. Vital Capacity (VC): The maximum volume of air a person can breath

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