click below
click below
Normal Size Small Size show me how
Volume/Capacities
Volumes and capacities involved with respiration
Question | Answer |
---|---|
Tidal Volume | Volume of air inhaled and exhaled during respiration (air that's exchanged) |
TV | 500-700cc |
Inspiratory Reserve Volume | amount of air that you can force into your lungs beyond tidal volume (gulp at the end) |
IRV | 1500-2500cc |
Expiratory Reserve Volume | amount of air that you can force out of your lungs beyond tidal volume |
ERV | 1500-2000cc |
Residual Volume | the air that remains in the lungs and airways even after a maximum exhalation. |
RV | 1000-1500cc |
Dead air | found in dead air spaces (nasal cavities, larynx, trachea, bronchi) Last air that inhaled, first air exhaled |
Inspiratory Capacity | maximum amount of air that you can force into your lungs upon normal expiration |
IC | TV+IRV |
Vital Capacity | All the air that you can force out of your lungs after maximum inspiration. Total useable air. |
VC | IRV+TV+ERV or TLC-RV |
Functional Residual Capacity | the air in lungs and airways at the resting expiratory level |
FRC | ERV+RV |
Total Lung Capacity | quantity of air the lungs are capable of holding at the height of max. inhalation |
TLC | TV+IRV+ERV+RV |