How do the cilia inside nose prepare air for going into lungs?

The nose hairs and mucus capture most large particles (such as dust and pollen) and keep them from reaching the lungs. But some small particles do still make it past these barriers. Some of these particles hit the mucus-covered hairs (cilia) that line the nose and sinuses and get caught there. The cilia push the mucus with the particles in it away from the lungs and toward the back of the throat, where it is swallowed or spit out. This helps to keep the air entering the lungs clean.

Here are some additional details about how the cilia inside the nose prepare air for going into the lungs:

* The cilia are tiny, hair-like structures that are covered in mucus.

* They line the inside of the nose, sinuses, and trachea.

* The cilia move in a wave-like motion, which helps to push the mucus and trapped particles toward the back of the throat.

* The mucus is then swallowed or spit out, which helps to prevent the particles from reaching the lungs.

* The cilia also help to humidify the air that enters the lungs.

* This helps to keep the lungs healthy and functioning properly.