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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