Anatomy of the Nose

Anatomy of the Nose

Amanda Morgan, MS, OTR/L

Weatherly Landry, OTA/S

2/1/2010

ScheduleSchedule

Powerpoint Name that Smell

What is Anatomy?

What is Anatomy?

Structural makeup of an

organism.

Sense of Smell?

Sense of Smell?

Considered the least important sense

Oldest

Acts more on a subconscious level

Joke Time!!Joke

Time!!

Question:

An Old Factory does what?

It smells!!

The Olfactory SystemThe Olfactory System

How Does It Work?

Sense of Smell

Detection of chemicals floating in the air.

Chemical molcules enter the nose and dissolve in mucous within a membrane called Olfactory Epithelium

Humans~Olfactory epithelium is 7 cm up from the nostrils

Do nose hairs have a purpose?

Do nose hairs have a purpose?

Hair cells or cilli ~olfactory receptors that respond to particular chemicals.

Humans ~ 40 million olfactory receptors

German Sheherd dog~ 2 billion olfactory receptors

Hair cells, or cilia or olfacotry receptors react and send information to the olfactory bulb.

Old factory sends message to the brain (limbic system).emotional behavior, memory

Smell can bring up memories

AnosmiaAnosmiaAnosmia~ 2 million in US have NO sense of smell.

Causes:

Serious head injury

Damage to the olfactory nerves

Parkinson’s Disease

Alzheimer’s Disease

Symptoms:

Food less appetizing

losing smell memory linked to depression

unable to smell common items

Diagnosis:

Doctors do a scratch n sniff odor test

Ahhh…Choo!Ahhh…Choo!Sneeze (sternutation)~ your bodies way of removing an irritation from your nose.

Tickle-message sent to brain-message sent to muscles-sneeze

Always close your eyes when you sneeze.

Sneeze~tiny particles out at 100 miles per hour

Cover Your Mouth!!

More Olfactory System

More Olfactory System

Fibers and cells in the Olfactory Epithelium then carry the message to the Olfactory Bulb.

The bulb then sends the messages to the brain, including the Temporal Lobe.

The Temporal Lobe

The Temporal Lobe

Your Temporal Lobe is responsible for recognizing memories.

That’s why smell is connected to memory!

Where are your Temporal Lobes?

Let’s Test YOUR Olfactory SystemLet’s Test YOUR Olfactory System

Pass around aromatherapy containers.

Can you guess the scent?

Which is your favorite and least favorite?

Name That Smell!!

Name That Smell!!

1)

Orange

Name That Smell!!

Name That Smell!!

2) Grapefruit

Name That Smell!!

Name That Smell!!

3)

Vanilla

Name That Smell!!

Name That Smell!!

4)

Lavender

Name That Smell!!

Name That Smell!!

5)

Neroli 5th

(Orange Leaf)

Name That Smell!!

Name That Smell!!

6) Peppermint

References:References:

Webster's Dictionary. Retrieved on 1/27/10 from www.webstersdictionary.com

Neuroscience for Kids. Retrieved 1/27/10 from http://faculty.washington.edu/chudler/nosek.html

Neuroscience for Kids. Retrieved 1/27/10 from http://faculty.washington.edu/chudler/lobe.html