Cool Quiz! Trivia, Quizzes, Puzzles, Jokes, Useless Knowledge, FUN!

 Search Cool Quiz!
 Advanced Search »

Trivia Quizzes Puzzles Humor Fun Pages Connect Make a Quiz!Message BoardsSend This to a Friend!View Your Profile

That Explains It Tell a Friend!
Tell a Friend

How do we smell?
How do we smell?

Specialized receptor cells of the olfactory epithelium detect and recognize smells.

Your nose is a huge cavity built to smell, moisten, and filter the air you breathe. When you breathe in, the tiny hairs, called cilia, act like a broom and filter everything trying to get into your nose; from dust particles to bugs.

The air passes through the nasal cavity and though a thick layer of mucous to the olfactory bulb. The smells are recognized here because each smell molecule fits into a nerve cell like a puzzle piece. The cells then send signals to the brain via the olfactory nerve. The brain then interprets those molecules as the sweet flowers, or the curdling milk that you've held up to your nose.

Humans can detect over 10,000 different smells. The olfactory nerve picks up the scents from the air you breathe and translate them into nerve impulses or messages that are then sent to the olfactory bulb located in the front of the brain.

Actually, how and why we smell is still inadequately known. There are many theories about the exact process of our sense of smell. Most believe that it is highly specialized processes in which molecular rings and receptors invite odorant-bringing proteins. It is a very complicate, intricately detailed, and mysteriously misunderstood system, our sense of smell.

Did you know?

  • Dogs have 1 million smell cells per nostril, and their cells are up to 100 times larger than those of humans.
  • Anosmia is the condition that makes people unable to smell.
  • Your sense of smell directly affects your sense of taste.
  • Smell can evoke emotions such as happiness, fear, even sexuality. the "smell-brain," the Rhinocephlon is functionally associated with the entire emotional tone of a person.

View Another Question?

More Trivia Fun!
» Trivia about   Smell   or   Nose
» Quotes about   Smell   or   Nose
» Why do people snore?
» What is a Booger made of?
» What makes people sneeze?
Related Reading Related Reading on the Web
» Your Sense Of Smell

Books from Books from
» Books about Smell

Join Cool Quiz and Win Prizes!JOIN COOL QUIZ!

Login (your email)

Password (forget?)

Featured Trivia
Phobias - What are you afraid of?
What is a BOOGER made of?
Smileys and E-mail Shorthand
What do you call a group of?
U.S. Town Names

Privacy Policy | Terms of Use | Media Kit | About Us | Make Us Your Homepage