NEET Zoology Mechanism of Breathing MCQ Question
Which of the following statements correctly describe the mechanism of breathing?
The thoracic chamber expands during expiration to allow air to flow out.
The conducting part of the respiratory system humidifies and warms the incoming air.
Alveoli serve as the primary site for the diffusion of O2 and CO2 between blood and air.
The larynx plays a crucial role in transporting air directly to the alveoli.
Correct Answer
Detailed Explanation
Statement B is correct as the conducting part of the respiratory system is responsible for humidifying and warming the incoming air. Statements A and D are incorrect as the thoracic chamber contracts during expiration and the larynx does not transport air directly to the alveoli. Statement C is also correct, but only one option is to be selected.
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