Question

Statement I: Volume of air inspired or expired during normal inspiration or expiration is called tidal volume. 
Statement II: The volume of air that remains in the lungs after normal expiration is called residual volume. 
 

• A. Both the statements I and II are correct.
• B. Both statements I and II are wrong.
• C. Statement I is true. But II is false.
• D. Statement I is false. But II is true.

Hint:

Tidal volume is the normal volume of air moved during breathing, while residual volume is the air left in the lungs after forced exhalation.

Answer 1

The Correct Option is C

Tidal volume is the volume of air moved in and out of the lungs during normal breathing, which is true. 
However, Statement II is incorrect because the volume of air remaining in the lungs after normal expiration is called functional residual capacity (FRC), not residual volume alone. Residual volume refers to the air left in the lungs after a forced exhalation, not after normal expiration. 
Therefore, Statement II is false. 
Final Answer: 
Statement I is true. But II is false.