Anatomy of the Nose Amanda Morgan, MS, OTR/L Weatherly Landry, OTA/S 2/1/2010.

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Presentation transcript:

Anatomy of the Nose Amanda Morgan, MS, OTR/L Weatherly Landry, OTA/S 2/1/2010

Schedule Powerpoint Name that Smell

What is Anatomy? Structural makeup of an organism.

Sense of Smell? Considered the least important sense Oldest Acts more on a subconscious level

Joke Time!! Question: An Old Factory does what? It smells!!

The 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? 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

Anosmia Anosmia~ 2 million in US have NO sense of smell. Causes: Serious head injury Damage to the olfactory nerves Parkinsons Disease Alzheimers 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! 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 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 Your Temporal Lobe is responsible for recognizing memories. Thats why smell is connected to memory! Where are your Temporal Lobes?

Lets Test YOUR Olfactory System Pass around aromatherapy containers. Can you guess the scent? Which is your favorite and least favorite?

Name That Smell!! 1) Orange

Name That Smell!! 2) Grapefruit

Name That Smell!! 3) Vanilla

Name That Smell!! 4) Lavender

Name That Smell!! 5) Neroli 5 th (Orange Leaf)

Name That Smell!! 6) Peppermint

References: Webster's Dictionary. Retrieved on 1/27/10 from Neuroscience for Kids. Retrieved 1/27/10 from Neuroscience for Kids. Retrieved 1/27/10 from