How The Nose Works by Neil (Explanation)

As a food or anything gets nearer your body, your nose sucks up the smell into the nose.

The nose has series of rigged passageways, so the smell goes haywire around the nose. As soon as the smell enters the nose, the process begins to happen.

When you breathe a smell gets sucked in through holes called the nostrils, past thousands, maybe millions of tiny hairs called cilia. The smell then passes through a giant space called the nasal cavity, passing the snot-making mucos membrence. The smell then gets sucked into a processor called the olfactory epithelium, which is where smells are sorted and gets turned into signals. Then the smell travels down the olfactory nerve, which connects to the olfactory bulb. It stays in the olfactory bulb for a few milli- milli seconds before it shoots of to the brain.

The brain can now identify the smells and see if they are good or bad!