The purpose of respiratory cilia is to

Question

Quizplus · Accepted Answer

Respiratory cilia are small hair-like structures that line the air passages of the respiratory system. Their main function is to trap and sweep out mucus, dust, and other particles that may have entered the passages during breathing, thereby keeping the airways clear for efficient gas exchange. Choice A is incorrect because respiratory cilia do not signal the body about respiratory poisons directly. Choice B is incorrect because respiratory cilia do not have the ability to absorb smoke. Choice C is incorrect because gas exchange takes place across the walls of the air sacs (alveoli) in the lungs, and not through the cilia in the airways.

The Purpose of Respiratory Cilia Is to