Question
The volume of air remaining in the lungs after a normal expiration is called:
| A. |
Expiratory residual volume |
| B. |
Functional residual capacity |
| C. |
Residual volume |
| D. |
Vital capacity |
Show Answer
|
Correct Answer � B Explanation |
 |
Functional Residual Capacity (FRC):
-
- The volume of air remaining in the lungs after a normal tidal expiration.
- FRC = Residual Volume + Expiratory Reserve Volume.
Other Options:
(A) Expiratory Residual Volume: Incorrect term, likely confused with Expiratory Reserve Volume.
(C) Residual Volume: Air remaining in lungs after maximal expiration.
(D) Vital Capacity: Maximum air volume exhaled after a full inspiration.