NEET Zoology Mechanism of Breathing MCQ Question
Consider a diagram of the thoracic chamber showing the ribs, sternum, and diaphragm. Which structure is responsible for creating the airtight nature of the thoracic chamber during the mechanism of breathing?
Pleural membranes
Alveoli
Bronchioles
External nostrils
Correct Answer
Detailed Explanation
The thoracic chamber is anatomically an air-tight chamber due to the pleural membranes lining it. This airtight nature is crucial for the mechanism of breathing, as it allows for changes in pressure that facilitate inspiration and expiration.
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