Play health video: //medlineplus.gov/ency/videos/mov/24342_eng.mp4
Play health video with audio description: //medlineplus.gov/ency/videos/mov/24342_eng_ad.mp4
As a person inhales, air and scent molecules move past the smell receptors in the nose.
In turn, the smell receptors relay a signal to the brain. Smells can trigger memories and emotional responses.
Review Date 2/12/2020 12:00:00 AM