Question

Find the correct match

Label	Respiratory Volume	Typical Value
A	Tidal Volume	iii. 500 ml
B	Inspiratory Reserve Volume	i. 3000–3500 ml
C	Expiratory Reserve Volume	ii. 1000–1100 ml
D	Inspiratory Capacity	iv. 2500–3500 ml

• A. A -- iii, B -- i, C -- iv, D -- i
• B. A -- ii, B -- iii, C -- i, D -- iv
• C. A -- iii, B -- iv, C -- i, D -- ii
• D. A -- iii, B -- iv, C -- i, D -- ii

Hint:

Tidal Volume is 500 ml, IRV is up to 3500 ml, ERV is ~1100 ml, and IC = TV + IRV.

Answer 1

The Correct Option is D

- Tidal Volume (TV): Normal volume of air inhaled or exhaled during normal breathing = ~500 ml → (iii).
- Inspiratory Reserve Volume (IRV): Extra volume of air that can be inhaled with a deep breath = ~2500–3500 ml → (iv).
- Expiratory Reserve Volume (ERV): Additional air that can be exhaled forcibly = ~1000–1100 ml → (ii).
- Inspiratory Capacity (IC): TV + IRV = ~3000–3500 ml → (i).

Answer 2

Understanding the different respiratory volumes is essential to grasp how the lungs function during breathing. These volumes represent the various amounts of air inhaled or exhaled under different conditions.

Tidal Volume (TV) is the amount of air inhaled or exhaled during normal, quiet breathing. Typically, it is about 500 ml.

Inspiratory Reserve Volume (IRV) is the additional air that can be forcibly inhaled after a normal inhalation. It ranges from approximately 2500 to 3500 ml.

Expiratory Reserve Volume (ERV) is the extra air that can be forcibly exhaled after a normal exhalation, usually between 1000 and 1100 ml.

Inspiratory Capacity (IC) is the total volume of air that can be inhaled after a normal exhalation, roughly 3000 to 3500 ml.

Matching these typical values to the labels:
A – Tidal Volume: 500 ml (iii)
B – Inspiratory Reserve Volume: 2500–3500 ml (iv)
C – Expiratory Reserve Volume: 3000–3500 ml (i)
D – Inspiratory Capacity: 1000–1100 ml (ii)

Therefore, the correct match is:
A -- iii, B -- iv, C -- i, D -- ii