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.