The trachea has a number of adaptations: cartilage rings in the walls of the trachea help to keep it open ciliated epithelium and ... different parts of the respiratory system as shown here.

I was promoted to Professor of Respiratory Cell and Molecular Biology at the University of Sheffield in 2016. I have been at Sheffield since 1997 when I was appointed to a Lectureship to support the ...

These modes of transmission are similar to those of the common cold, flu, and other respiratory viruses. After entering the body, the virus attaches to the epithelial cells lining the respiratory ...