The vital capacity= 6000 mL, tidal volume=500 mL and expiratory reserve volume = 1000 mL. What is the inspiratory capacity? Express answer in Liters
Vital capacity = 6000 ml
Tidal volume = 500 ml
Expiratory reserve volume = 1000 ml
We know that,VC = TV +IRV+ERVSo,IRV = VC - TV-ERVHere, VC = vital capactity = 6000 mlTV = tidal volume = 500 mlERV = expiratory reserve volume = 1000 mlInspiratory reserve volume IRV = 6000-500-1000IRV = 4500 ml
Now, find the inspiratory capacity,It is the maximum volume of air that can be inhaled following a resting state. ThusIC = IRV + TV = 4500 ml + 500 ml = 5000 mlIC = 5 litersTherefore, the inspiratory capacity is 5 liters.