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pulmonary air vol / respiratory vol and capacities - Coggle Diagram
pulmonary air vol / respiratory vol and capacities
tidal vol(TV)
the vol of air breathed in and out during normal breathing in each respiratory cycle TV = 500 ml
inspiratory reserve vol (IRV)
it is an extra vol of air over and above the tidal vol can be taken in during a deep breath
IRV = 2500 to 3000 ml
expiratory reserve vol(ERV)
after a normal expiration one can expel a large vol of air ERV = 1000 to 1100 ml
residual vol
It is the amount of air left in the lung even after the max expiratory effort it can be forced out of lung RV = 1100 to 1200 ml
inspiratory capacity
the total amount of air a person can take in by distending the lungs to max
IC = 3000 to 3500 ml
expiratory capacity (EC)
total vol of air a person can expire after a normal inspiration
EC = 1500 to 2000 ml
functional residual capacity (FRC)
when a person breathes normally then the amount of air that remains in lungs after normal expiration
ERV = 2500 ml
vital capacity (VC)
the total amount of air expired after a max inspiration followed by expiration
VC = 4000 to 4500 ml
Total lung capacity
the amount of air present in lungs after max inhalation equivalent to 5500 to 6000 ml
Dead space capacity
the amount of air that is present in respiratory tubes where gaseous exchange does not occur with each expiration it is expelled out without undergoing any change in oxygen or co2 conc
equivalent to 150 ml