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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
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Emphysema damages the tissues of the lungs and slows pulmonary blood flow. This causes blood to back up, stretching and weakening the walls of the heart and blood vessels. Which of the following do you think would be most affected by this backup of blood from the lungs?
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Correct option: D
Right ventricle
Option D (Right ventricle) is correct because the right ventricle pumps blood to the lungs, so backflow from damaged lungs will directly affect it.
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suffocation.
Reason : Atmospheric air contains far less
oxygen content than the dissolved oxygen in
water. The faster breathing in high fever is due to the