Cilia are small hairs which beat to push the mucus back up the trachea so it can be swallowed and destroyed in the stomach. Clean air then enters the two bronchi, one bronchus going to each lung.

He is using a special laser to create artificial cilia, inspired by vibrating hairs that occur in nature. Den Toonder is receiving an Advanced Grant of 3 million euros from the European Research ...

To start, there are two kinds of nose hairs that are key here: the ones you can see and want to pluck, called the vibrissae, and the microscopic cilia, which are responsible for filtering mucus ...