Q. Listed below are four respiratory capacities (a - d) and four jumbled respiratory volumes of a normal human adult [table] Respiratory capacities | Respiratory volumes ; (a) Residual volume | 2500 mL ; (b) Vital capacity | 3500 mL ; (c) Inspiratory reserve volume | 1200 mL ; (d) Inspiratory capacity | 4500 mL [/table] 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
Explanation
[Solution from source] Inspiratory capacity = tidal volume (about 500 mL) + IRV (2500–3000 mL), which is about 3500 mL. Residual volume is about 1100–1200 mL. Vital capacity (about 4500 mL) and IRV (about 2500 mL) do not match the other options as given. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.