Thames & Kosmos Perfume Science handleiding

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CROSS SECTION OF THE OLFACTORY

EPITHELIUM

The smelling cells — specialized cells for

detecting smells — are located here.

Brain

Stem

Brain

Olfactory

Epithelium

(Smelling

Membrane)

Olfactory

Bulb

Smell

Limbic System

message is passed on to other parts of the

brain, especially to the limbic system.

The limbic system controls our moods

and feelings and also participates in a

collection and management of long-term

memory. This is one of the reasons that we

can remember smells so well.

> Did you know? About every other

month, a smelling cell dies and is replaced

by a new one.

What Do I Smell Here?

If the smell is strong enough, the message

will be passed on to a developmentally

younger part of the brain called the

olfactory cortex. Its nerve cells translate

the impulses they receive from the olfactory

bulb into an identifiable impression of a

smell, such as a flowery fragrance or foul

odor. Without the olfactory cortex, we

would have no conscious awareness of

smells.

THE PATH OF SMELLS

On their way up the nose, fragrances

and smells reach the olfactory epithelium

(smelling membrane) and the smelling bulb.

Cilia Olfactory

Epithelium

Olfactory NervesOlfactory Tissue

Olfactory

Cells

You Can Learn to Smell

The olfactory cortex stores the incoming

smell, or “smell pattern,” like data is stored

in the database of a computer. When you

smell freshly baked bread for the first time

and learn what it is, the smell pattern is

recorded in your olfactory cortex. If the

smell pattern of freshly baked bread is

already present in the data bank, the

olfactory cortex will signal you when this

smell is present again. In a way, it will tell

you “here is some freshly baked bread.”

Because this smell information also

brings back memories that were stored

in the limbic system, the smell of the

bread will probably be accompanied by

certain feelings. Your brain may make the

connection that soon you will be enjoying a

delicious piece of bread.

The more smells and associated memories

stored in the olfactory cortex’s data bank,

the more different smells and flavors you

can differentiate and define.

1. 2.

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