10 Questions
What is the approximate volume of Tidal Volume (TV) in a healthy individual?
500 mL
Which of the following represents the Total Lung Capacity (TLC) of an individual?
VC + RV
What does the Expiratory Reserve Volume (ERV) represent?
Additional volume of air a person can expire by a forcible expiration
Which pulmonary capacity includes Expiratory Reserve Volume (ERV) and Residual Volume (RV)?
Functional Residual Capacity (FRC)
What is the Inspiratory Reserve Volume (IRV)?
Additional volume of air a person can inspire by a forcible inspiration
Which lung volume represents the maximum volume of air a person can breathe in after a forced expiration?
Vital Capacity (VC)
What makes up the Expiratory Capacity (EC) in terms of respiratory volumes?
TV + ERV
What does the Inspiratory Capacity (IC) represent?
Total volume of air a person can inspire after a normal expiration
What is the Functional Residual Capacity (FRC)?
Volume of air that will remain in the lungs after a normal expiration
What does the Vital Capacity (VC) represent?
-Volume of air inspired or expired during a normal respiration
Study Notes
Lung Volumes and Capacities
- The approximate volume of Tidal Volume (TV) in a healthy individual is around 500 mL.
Total Lung Capacity (TLC)
- TLC represents the maximum amount of air in the lungs, around 6 L.
Expiratory Reserve Volume (ERV)
- ERV represents the additional air that can be forcibly exhaled after normal expiration, around 1 L.
Pulmonary Capacities
- Inspiratory Capacity (IC) includes Tidal Volume (TV) and Inspiratory Reserve Volume (IRV).
- Vital Capacity (VC) includes Expiratory Reserve Volume (ERV), Tidal Volume (TV), and Inspiratory Reserve Volume (IRV).
- Functional Residual Capacity (FRC) includes Residual Volume (RV) and Expiratory Reserve Volume (ERV).
Lung Capacities
- Inspiratory Reserve Volume (IRV) represents the additional air that can be breathed in forcefully after normal inspiration, around 3 L.
- Expiratory Capacity (EC) includes Expiratory Reserve Volume (ERV) and Tidal Volume (TV).
- Vital Capacity (VC) represents the maximum volume of air that can be breathed out after a forced inspiration.
Respiratory Volumes
- Residual Volume (RV) represents the air remaining in the lungs after forced expiration, around 1.2 L.
- Functional Residual Capacity (FRC) represents the air remaining in the lungs after normal expiration, around 2.3 L.
Test your knowledge on respiratory volumes such as Tidal Volume, Inspiratory Reserve Volume, and Expiratory Reserve Volume. Learn about the different volumes of air inspired or expired during respiration.
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