NEET Zoology Respiratory Organs MCQ Question
Which of the following statements about the human respiratory system is correct?
The trachea divides into primary bronchi at the level of the 5th thoracic vertebra.
The epiglottis is responsible for sound production during respiration.
The nasal chamber does not connect to the pharynx.
The larynx is a flexible tube that facilitates gas exchange.
Correct Answer
Detailed Explanation
The trachea does indeed divide into right and left primary bronchi at the level of the 5th thoracic vertebra, as stated in the NCERT context. The epiglottis prevents food from entering the larynx, which is crucial for swallowing but does not produce sound; the larynx itself is the structure that produces sound. Additionally, the nasal chamber does open into the pharynx, and the larynx is not a flexible tube but a cartilaginous box.
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