Zoology-Mechanism of Breathing
NEET Zoology Mechanism of Breathing MCQ Question
Type: MCQ-numerical-Easy-Class 11
If the thoracic volume increases by 500 mL during inspiration, by how much does the volume of the alveoli increase assuming all the air directly fills the alveoli?
A
500 mL
B
250 mL
C
750 mL
D
1000 mL
Correct Answer
Option A
Detailed Explanation
The thoracic chamber is an air-tight chamber that houses the lungs. During inspiration, any increase in thoracic volume directly translates to an increase in alveolar volume as air fills the lungs to maintain pressure equilibrium.
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