Respiratory volumes and capacities Flashcards
1
Q
Tidal Volume (TV)
A
volume inspired and expired per regular breath (500ml)
2
Q
Inspiratory Reserve Volume (IRV)
A
the maximum volume you can inhale beyond TV (3000ml)
3
Q
Expiratory Reserve Volume (ERV)
A
the maximum air volume you can exhale beyond the lowest of TV (1100ml)
4
Q
Residual Volume (RV)
A
the volume of air which always stays in your lungs to keep the alveoli a little inflated (not directly measured, about 20-25% of TLC)
5
Q
Inspiratory Capacity (IC)
A
-TV + IRV
- The maximum volume of air you can inhale at a time (3500ml)
6
Q
Vital Capacity (VC)
A
- IRV + TV + ERV
- max air that can be breathed out after the deepest inhalation (4600 ml)
7
Q
Functional Residual Capacity (FRC)
A
- ERV + RV
- the volume of air that remains in the lungs after the minimum of TV
8
Q
Total Lung Capacity (TLC)
A
- IRV + TV + ERV + RV
- The total volume of air that the lungs is capable of holding
