URL of this page: //medlineplus.gov/ency/anatomyvideos/000145.htm


What's this?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

Updated by:

Related MedlinePlus Health Topics