Biology · Respiratory System
What is the dual primary function of the mucus layer and cilia present in the human nasal passage during inhalation?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To accelerate the velocity of air flow and dry the throat
- 2To chemically break down nitrogen gas and synthesize carbon dioxide
- 3To decrease the pressure of inhaled air and store oxygen
- 4To trap dust particles and pathogens, and to humidify/warm the air✓
Correct answer
To trap dust particles and pathogens, and to humidify/warm the air
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