Listed below are four respiratory capacities (1 - 4) and four jumbled respiratory volumes of a normal human adult
Listed below are four respiratory capacities (1 - 4) and four jumbled respiratory volumes of a normal human adult
| Respiratory Capacities | Respiratory Volumes |
| 1. Residual volume | 2500 mL |
| 2. Vital capacity | 3500 mL |
| 3. Inspiratory reserve volume | 1200 mL |
| 4. Inspiratory capacity | 4500 mL |
Which one of the following is the correct matching of two capacities and volumes?
(a) (2) 2500 mL (3) 4500 mL
(b) (3) 1200 mL, (4) 2500 mL
(c) (4) 3500 mL, (1) 1200 mL
(d) (1) 4500 mL, (2) 3500 mL
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Correct Option (c) (4) 3500 mL, (1) 1200 mL
Explanation:
Inspiratory Capacity (IC) is the maximum amount of air that can be inspired after a normal expiration IC = TV + IRV. It is 3500 mL in adult male and 2400 mL in adult female.
Residual Volume (RV) is the amount of air remaining in the lungs after a forced exhalation. It average value is 1200 mL and 1100 mL in adult male and female respectively.
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