An adult human can distinguish up to 10,000 odors. You use your nose to figure out what to eat, what to buy and even when it's time to take a shower. But how do the molecules in the air get translated into smells in your brain? This learning module charts the smelly journey through your olfactory epithelium and explains why scent can be so subjective. [4:20]

Concepts

sense of smell

Show More Show Less

Additional Tags

nasal cavity, olfactory epithelium, how do we smell?, olfactory neurons, olfactory receptor cells, ted ed, ted talk

Show More Show Less

Classroom Considerations

• Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)