Respiratory Volumes and Capacities
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14 Terms
Tidal Volume
Amount of air exhaled/inhaled under resting conditions
Inspiratory Reserve Volume
Amount of air hat can be forcefully inhaled after a normal tidal volume inspiration
Expiratory Reserve Volume
Amount of air that can be forcefully exhaled after a normal tidal volume expiration
Residual Volume
Amount of air remaining in the lungs after a forced expiration
Total Lung Capacity
Maximum amount of air contained in the lungs after a maximum inspiratory effort
Formula for Total Lung Capacity
TLC = TV + IRV + ERV + RV
Vital Capacity
Maximum amount of air that can be expired after a maximal inspiratory effort
Formula for Vital Capacity
VC = TV + IRV + ERV
Forced Vital Capacity
Maximum amount if air forcefully exhaled after largest inhale
Forced Expiratory Volume
Volume of air that can be forced out of the lungs in the 1st second of a maximum expiratory effort
Inspiratory Capacity
Maximum amount of air that can be inspired after a normal tidal volume expiration
Formula for Inspiratory Capacity?
IC = TV + IRV
Functional Residual Capacity
Volume of air remaining in the lungs after a normal tidal volume expiration
Formula for Functional Residual Capacity
FRC = ERV + RV
