Listed below are four respiratory capacities (i–iv) and four jumbled respiratory volumes of a normal human adult:
Respiratory capacities:
(i) Residual volume
(ii) Vital capacity
(iii) Inspiratory reserve volume
(iv) Inspiratory capacity
Respiratory volumes:
2500mL, 3500mL, 1200mL, 4500mL
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Question

Listed below are four respiratory capacities (i–iv) and four jumbled respiratory volumes of a normal human adult:
Respiratory capacities:
(i) Residual volume
(ii) Vital capacity
(iii) Inspiratory reserve volume
(iv) Inspiratory capacity
Respiratory volumes:
2500mL, 3500mL, 1200mL, 4500mL
Which one of the following is the correct matching of two capacities and volumes?

Accepted Answer

(iv) 3500mL, (i) 1200mL. Inspiratory capacity is typically about 3500 mL, and residual volume is about 1200 mL in a normal adult. The other listed values correspond to different lung measures, so this pairing is the only correct one.

Solution

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