Getting to Know

1
Getting to Know Your Nervous System
Johns Hopkins University
2
What is your nervous system?
3
Stink Think and Fabulous Flavors
YOUR CHEMICAL SENSES
4
Our sense of taste and smell tells our brains
Where
What
How Much

• More or less than before

• CHANGES over time or place

5
Our senses of taste and smell let pieces of the
world.
touch our nervous system.
6
How do we taste and smell?
Chemical Molecule
Receptor Cell
7
Before the chemicals can connect with their
receptor cells,.
.they must dissolve.
8
How do we taste and smell different things?
9
Different taste cells tell your brain about
different tastes .
Salty
Sweet
Sour
Umami
Bitter
10
The receptor in your nose catches the molecules
in the air .
3,000 10,000
11
Receptors on taste cells send messages to your
brain.
12
The smell receptors send information into your
brain .
13
Our sense of smell lets us find out about
things that are far away.
14
Did you know that you smell?
Everyone has their own smell
a smell print.
15
Our sense of taste and our sense of smell work
together.


Flavor
16
Stink Think and Fabulous Flavors
YOUR CHEMICAL SENSES