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Stack #119789
Lung Volumes
| Name | Definition | Volume |
|---|---|---|
| Tidal volume | the volume of air inspired and expired on a normal breath (sitting in class) | 500mL |
| Inspiratory reserve volume | maximum inspiration after a normal tidal inspiration (breath in normal, then take deep breath) | 3000mL |
| Expiratory reserve volume | the extra volume of air that can be expired after a tidal expiration (breath out normal, then breath out as much as possible) | 1200mL |
| Residual volume | the volume of air left in the lungs after a forced expiration (always have some air in lungs) | 1200mL |
| Inspiratory capacity | volume of air after a complete inspiration (normal+forced) | 3500-3600mL |
| Functional residual capacity | the volume of air that remains after a normal expiration | 2400mL |
| Vital capacity | volume of air expired after a maximum inspiration | 4600-4800mL |
| Total lung capacity | maximim volume of air that the lungs can be expanded with the greatest possible effort | 5800-6000mL |
| Minute respiratory volume | tidal volume x resp. rate | around 6000mL |
| Peak expiratory flow rate (peak flow) | max rate of airflow in the first 150milliseconds of a max expiration | v. important |