Mucus traps the unwanted dust particles.
___ have mucus and cilia to trap dust particles present in the air and stops them from entering our body.
HERE IT IS SAID THAT The cilia move the mucus containing dust particles back to the pharynx, where it is swallowed.topic- Parts of Human Respiratory System- Trachea:-does it mean that the mucus containing dust particles reach the stomach.Then how are they removed out of the body.
The lining of the nasal chamber has mucus which prevents pollen and dust particles from entering into the lungs.