If: What is? If: What is? TLC = 5600 ml FRC = VC = 4000 ml TLC = IC = 3000 ml VC
ID: 3479875 • Letter: I
Question
If: What is? If: What is?
TLC = 5600 ml FRC = VC = 4000 ml TLC =
IC = 3000 ml VC = FRC = 2300 ml IC =
TV = 500 ml IRV = ERV = 1100 ml RV =
RV = 1400 ml ERV = IRV = 2400 ml TV =
If: What is? If: What is?
IC = 4000 ml TLC = IRV = 3500 ml TLC =
TV = 800 ml VC = FRC = 2300 ml IC =
FRC = 2500 ml IRV = TV = 600 ml VC =
RV = 1100 ml ERV = RV = 1000 ml ERV =
Inspiratory Reserve Volume (IRV) IRV Inspiratory Capacity (IC) VC Vital Capacity (VC) Tida Total Lung Volume Capacity TV (TV) (TLC) Expiratory Reserve Volume (ERV) ERV Functional Residual Capacity (FRC) FRC Residual Volume (RV) Residual Volume (RV) RVExplanation / Answer
First let us have a clear cut idea about the said volume and capacitis in lung.
TV /tidal volume is the volume of air that can move in or out of lung during quiet respiration.
IRV/ inspiratory reserve volume is the volume of air that can be forcefully inspired into lung beyond quiet respiration.
ERV /expiratory reserve volume is the volume of air that can be forcefully expired out of lung beyond quiet respiration.
FRC/Functional residual capacity is the voume of air that is present in lung after quiet expiration.
so FRC= ERV+RV
RV/Residual volume : Volume of lung that will remain in lung even after forceful expiration.
This does not take part in gas exchange.
VC/Vital capacity= IRV+TV+ERV
If TLC=5600 ml, IC=3000 ml,TV=500 ml,RV=1400 ml
FRC=ERV+RV
=(Vital capacity-IC/inspiratory capacity) +RV
={(TLC-RV) -IC}+RV
={( 5600-1400)-3000}+1400
={4400-3000}+1400
=1400+1400=2800 ml
From the above equation we got ERV 1400 ml
So VC/ Vital capacity=(IRV+TV)+ERV=IC+ERV=3000+1400=4400 ml
IRV= IC-TV(INSPIRATORY CAPACITY-TIDAL VOLUME)
=3000-500=2500 ml
ERV is 1400 ml(calculation provided above)