Ahh. Let's continue. On the roof of the nasal cavity is the olfactory epithelium, which contains nearly 40 million special receptors that are sensitive to odor molecules traveling through the air.

the bacteria could travel up the olfactory nerve (joining the nasal cavity and the brain). What's more, when there was damage ...

As compared to controls, elevated nasal levels of ACE2 and TMPRSS2 were associated with a 3.6-fold increased risk of SARS-CoV-2 infection. Males were also more likely to exhibit greater ACE2 and ...

We don’t know much about the regulation of endocytosis and cell-to-cell transport in the muco-ciliary epithelium of the upper respiratory tract. Viruses, on the other hand, know all about it. We use ...

The air that enters the nasal cavity flows down the trachea. The trachea has a number of adaptations: cartilage rings in the walls of the trachea help to keep it open ciliated epithelium and ...