NEET2017Zoology-Human Physiology
NEET 2017 Zoology Respiratory System MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of
A
residual volume
B
inspiratory reserve volume
C
tidal volume
D
expiratory reserve volume
Correct Answer
Option A
Detailed Explanation
Residual volume is the amount of air remaining in the lungs after a forceful expiration, preventing alveolar collapse by maintaining lung inflation.
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