Lung Volumes and Capacities

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  1. What are the 4 lung volumes?
    • Vt
    • IRV
    • ERV
    • RV
  2. What is Vt?
    • Tidal Volume: Volume of air that is inhaled or exhaled from the lungs during effortless breathing
    • 500 ml
  3. What is IRV?
    • Inspiratory Reserve Volume: Maximum volume of air that can be inhaled following a normal quiet inspiration
    • 3100 ml
  4. What is ERV?
    • Expiratory Reserve Volume: Total amount of gas that can be exhaled from the lung following a normal quiet exhalation
    • 1200 ml
  5. What is RV?
    • Residual Volume: Volume of gas remaining in the lungs after a complete exhalation
    • 1200 ml
  6. What are the 4 Lung Capacities?
    • TLC
    • IC
    • FRC
    • VC
  7. What is TLC?
    • Total Lung Capacity: Total amount of gas in lungs after a maximum inspiration
    • 6000 ml
  8. What is IC?
    • Inspiratory Capacity: Max amount of air that can be inhaled from the resting end expiratory level or FRC; the sum of Vt and IRV
    • 3600 ml
  9. What is FRC?
    • Functional Residual Capacity: Total amount of gas in lungs after a resting expiration; the sum of ERV and RV
    • 2400 ml
  10. What is VC?
    • Vital Capacity: Total amount of air that can be exhaled after a maximum inspiration; the sum of IRV, Vt and ERV
    • 4800 ml
Card Set
Lung Volumes and Capacities
Lung Volumes and Capacities
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