Smelly Nelly The receptors for smell lie up in the upper, inside part of the nose. There are 30 million receptors in each one of your nostrils. This means that you have 60 million tiny little smell receptors in your entire nose. Some of your smell receptors have distinct smells that they relate to, and others have a wide variety of smells that they can detect. Humans have fairly sensitive sense of smell.
Humans can identify thousands of odors.
If you are having trouble smelling an odor take a little sniff, sniffing gets more air into your nose. A moist nose is also suppose to help you smell. Return to smell activities . You have 9,000 of these inside your mouth. They are your taste buds.