How does the mucus help keep the airways clean?

Mucus plays a crucial role in keeping the airways clean by trapping dust, pathogens, and other foreign particles that enter the respiratory system. Cilia, tiny hair-like structures lining the airways, move in a coordinated manner to push the mucus, along with the trapped debris, towards the throat where it can be swallowed or expelled. This mucociliary clearance mechanism helps prevent infections and maintains respiratory health by ensuring that the airways remain clear and functional.