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Listed below are four respiratory capacities (a–d) and four jumbled respiratory volumes of a normal human adult.
Respiratory capacities: (a) Residual volume, (b) Vital capacity, (c) Inspiratory reserve volume, (d) Inspiratory capacity
Respiratory volumes: 2500 mL, 3500 mL, 1200 mL, 4500 mL
Which one of the following is the correct matching of two capacities and volumes?
Respiratory capacities: (a) Residual volume, (b) Vital capacity, (c) Inspiratory reserve volume, (d) Inspiratory capacity
Respiratory volumes: 2500 mL, 3500 mL, 1200 mL, 4500 mL
Which one of the following is the correct matching of two capacities and volumes?
A
(a) 4500 mL, (b) 3500 mL
B
(b) 2500 mL, (c) 4500 mL
C
(c) 1200 mL, (d) 2500 mL
D
(d) 3500 mL, (a) 1200 mL
Detailed Solution
Tidal volume (TV) is about 500 mL; inspiratory reserve volume (IRV) is 2500–3000 mL; expiratory reserve volume (ERV) is 1000–1100 mL; residual volume (RV) is 1100–1200 mL.
(a) Residual volume = about 1200 mL.
(c) Inspiratory reserve volume = about 2500 mL.
(d) Inspiratory capacity = TV + IRV = 500 + 3000 = about 3500 mL.
(b) Vital capacity = ERV + TV + IRV = about 4500 mL.
The only option in which both matches are correct is (d) 3500 mL and (a) 1200 mL.
(a) Residual volume = about 1200 mL.
(c) Inspiratory reserve volume = about 2500 mL.
(d) Inspiratory capacity = TV + IRV = 500 + 3000 = about 3500 mL.
(b) Vital capacity = ERV + TV + IRV = about 4500 mL.
The only option in which both matches are correct is (d) 3500 mL and (a) 1200 mL.