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The Effect of Smell on Taste. By Kesav R. Dale T. Daniel F. And Mike P. The Olfactory System.

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the effect of smell on taste

The Effect of Smell on Taste

By Kesav R.

Dale T.

Daniel F.

And

Mike P.

the olfactory system
The Olfactory System
  • Olfactory receptors line nasal epithelium, axon extends through pores in bones of skull, dendrite has branches, olfactory cilia that contain receptor proteins for odorants, protected by a thin layer of mucus
olfactory system
Olfactory System
  • Receptors send axons to olfactory bulb, in primates lies over nose, in other vertebrates posterior to nose
  • Axons from olfactory bulb enter brain via olfactory tract, project to primary olfactory cortex or pyriform cortex on anterioventral of anterioventral of telencephalon, no passage through thalamus
taste
Taste
  • Taste is one of the five senses used by the brain to distinguish certain aspects of the natural world, and discern poisons and unhealthy foods
  • The main instrument used to taste is the tongue
  • However, recognition and memory also plays a role in taste
the tongue
The Tongue
  • The tongue has clusters of taste-receptor cells in taste buds.
  • Taste buds are organized into five groups of sensors:

Bitter

Sour

Sweet

Salty

Umami

taste buds
Taste Buds
  • Gustatory receptors found on the tongue, throat, and oral lining (primarily the cheeks)
  • Taste pores cluster together to form taste buds
  • Each receptor is connected through a synapse to at least one sensory neuron leading to the back of the brain
how is flavor recognized
How Is Flavor Recognized?
  • Collaboration of taste, smell, and the brain
  • Sensed by taste sensations, food temperature, texture, and odor.
what causes smell and taste disorders
What Causes Smell and Taste Disorders?
  • Aging or birth defects
  • Several other causes such as laryngitis and smoking
disturbance of smell
Disturbance of Smell
  • Transport olfactory loss
  • Sensory olfactory losses
  • Others including specific anosmia and and partial anosmia
effects of disorders
Effects of Disorders
  • Loss of senses
  • Loss of ability to distinguish flavor
how to diagnose disorders
How to Diagnose Disorders
  • Several easy tests, such as the “scratch-and-sniff” test and the “sip, spit and rinse” test.
medication
Medication
  • Several treatments to improve conditions
  • No proper medication
bibliography
Bibliography
  • Jacob, Tim. “Taste- A Brief Tutorial.” http://www.cf.ac.uk/biosci/staff/jacob/te aching/sensory/taste.html. Accessed 4/25/04.
  • Encyclopaedia Encarta. “The Tongue.”

http://www.encarta.com. Accessed 4/23/04.

  • Anonymous. “The Sense of Taste.

http://users.rcn.com/jkimball.ma.ultrauet/BiologyPages/T/Taste.htm. Accessed 4/22/04.

  • Anonymous. “Smell and Taste Disorders.”

http://www.entnet.org/healthinfo/topics/smell_taste.cfm. Accessed 4/19/04.