The protective role of the mucous membrane

The mucous membrane protects us from external threats with its mucous, which blends with impurities. Then, the small nose hairs on the mucous membrane direct these impurities toward the throat and then the stomach. Stomach acids permanently eliminate these impurities. Sneezing is also a way of getting rid of impurities. Proper nose hygiene helps the mucous membrane pro?tect the body.