|Cilia| are tiny hairs which cover the inside of many ~mucous~ linings. They are found throughout the body and, by their wave-like motion, they serve to filter and transport particulate material along the surface of the mucosal lining. Respiratory |cilia| are responsible for helping to filter dust and debris out of inhaled ~air~ and transmitting it with ~mucous~ to the |pharynx| to be swallowed. The |nasal cavity|, |pharynx|, |trachea|, and bronchii ~mucous~ linings each have these structures.
