The Respiratory System

How the Lungs Work


Hi kids, I'm called "Sweeper" because I sweep mucus along the surface of the airways. I have little "hairs" on my top called cilia.

Me and my mates, and there are millions of us, are very busy all day long trying to keep the air you breathe free of unwanted dust and pollen. Cells called goblet cells secrete mucus which helps to trap the dust. We sweep the mucus upward out of the airway.


"Sweep, sweep, sweep all day long that is what we do.
With our hairs that are quite silly we remove the goo."


To learn more about me, go to the airways section of this website.