NEET Zoology Mechanism of Breathing MCQ Question
If the thoracic chamber is an air-tight chamber, which of the following statements correctly explains the effect of a puncture wound on the thoracic wall on the process of breathing?
The lung on the affected side collapses due to loss of negative pressure.
Both lungs collapse immediately due to atmospheric pressure.
Breathing rate increases to compensate for reduced oxygen intake.
There is no effect on breathing as the other lung compensates.
Correct Answer
Detailed Explanation
The thoracic chamber is an air-tight chamber, which helps maintain negative pressure required for lung expansion. A puncture wound disrupts this, causing the lung on the affected side to collapse.
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