For one thing, the inside of the trachea is lined with tiny hairlike filaments called cilia that beat synchronously ... and so if you look at the literature, you'll see hundreds and hundreds ...

More information: Yusheng Wang et al, Sensory artificial cilia for in situ monitoring of airway physiological properties, Proceedings of the National Academy of Sciences (2024). DOI: 10.1073/pnas ...

Cilia depend on their highly differentiated structure, a 9 + 2 arrangement, to remove particles from the lung and to transport reproductive cells. Immortalized cells could potentially be of great ...

In the former he found that the bronchial epithelium contained more goblet cells, shorter cilia and a ... 22 From the trachea and bronchi of human beings (or animals) a cup 2 to 3 mm.

The trachea is also lined with tiny hair-like structures called cilia. These help push mucus that contains debris or pathogens out of the trachea. A person then either swallows or spits out the mucus.