NEET Solved Paper 2017 Question 41
Question: Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of:
Options:
A) Expiratory Reserve Volume
B) Residual Volume
C) Inspiratory Reserve Volume
D) Tidal Volume
Show Answer
Answer:
Correct Answer: B) Residual Volume
Solution:
- Residual Volume (RV) is the amount of air that remains in the lungs after a forceful expiration. This volume of air prevents the alveoli from collapsing and ensures that there is always some air in the lungs to facilitate continuous gas exchange.