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The Pharmacist Answers Podcast

Have a question for the pharmacist? Get your answers here! Clear explanations about complicated medical topics that anyone can understand. Disclaimer: The information contained in this blog and related podcast are not to be taken as medical advice, they are for informational and educational purposes only. If you resemble anything that is mentioned in this blog or related podcast, contact your doctor. The information contained in this blog and related podcasts is the opinion of the author and does not relfect the views of her employer, Walgreens. If you want to know what Walgreens thinks, ask Walgreens!
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May 29, 2017

Air goes in your nose and flows over the smell sensors.

Your nose and sinus cavities act as a resonating chamber for your voice.  That's why you sound funny when you hold your nose or when your nose is stopped up from a cold or allergies.  This is important in talking and singing.

What makes something smell?
Volatile molecules evaporate at normal temperatures and pressures, so actually molecules of the thing are in the air and available to go in your nose.  Don't think about this too hard....

The smelling sensors are on the roof of the nasal cavity --> olfactory receptors (olfactory is the fancy word for smelling).  The molecules fit into the receptors like a key in a key hole.  Our brain likes to categorize things, and so certain compounds have similar structures and get lumped together ("smells like eggs" but you know it's not real eggs).

The olfactory receptors send the signals to the olfactory bulb (which is the area in the brain that translates all the smells and allows you to identify a smell).  It's not a very long trip....

The olfactory bulb is a part of the limbic system (the emotion center).  this is why smell is more strongly connected to emotions and memory - even stronger than sight and sound.

If you go to the perfume counter at a department stores, you'll find that they all start smelling the same.  The perfume department will have coffee beans because it helps clean out the receptors.

Coffee-scented, caffeinated perfume <-- free idea!!

Inflammation and mucus congestion blocked off the receptors.

No concrete evidence of why pregnant women get a "super smeller" during pregnancy.

One rogue molecule won't make you smell something.

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"Radio Martini" Kevin MacLeod (incompetech.com)  Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/

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