NEET2010ZoologyBreathing and Exchange of GasesActual
Listed below are four respiratory capacities (1 - 4) and four jumbled respiratory volumes of a normal human adult (1) Residual volume 2500 ~mL (2) Vital capacity 3500 ~mL (3) Inspiratory reserve 1200 ~mL volume (4) Inspiratory capacity 4500 ~mL Which one of the following is the correct matching of two capacities and volumes?
Options
- 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
Correct answer
C. (4) 3500 ~mL (1) 1200 ~mL
Step-by-step solution
Inspiratory Capacity (IC) is the maximum amount of air that can be inspired after a normal expiration, IC = TV + IRV . It is 3600 ~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. Its average value is 1200 ~mL and 1100 ~mL in adult male and female respectively.