So that suggests to us that our sense of self does not end at the last layer of the epithelium of our bodies, but it ends at the last layer of electrons of the tools that we're commanding with our brains.

But at the very back of your nose is a region called the olfactory epithelium, a little patch of skin that's key to everything you smell.

The olfactory epithelium has a layer of olfactory receptor cells, special neurons that sense smells, like the taste buds of your nose.

When odor molecules hit the back of your nose, they get stuck in a layer of mucus covering the olfactory epithelium.

As a side note, you can tell a lot about how good an animal's sense of smell is by the size of its olfactory epithelium.

A dog's olfactory epithelium is 20 times bigger than your puny human one.

For example, our olfactory epithelium is pigmented, and scientists don't really know why.

If the olfactory epithelium gets swollen or infected, it can hamper your sense of smell, something you might have experienced when you were sick.

Those scents hit your olfactory epithelium and tell your brain a lot about what you're eating.

Epithelium in sentence

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