17 Questions
Where is the olfactory cortex located in the brain?
Temporal lobe
What is the primary function of the olfactory bulb?
To send extensions to certain areas in the brain
Why do older people tend to apply excessive amounts of perfume or cologne?
Because they have a weaker sense of smell
What system is directly connected to the olfactory bulb?
Limbic system
What is the primary function of the amygdala?
To process emotions
What is the percentage of what we perceive as 'taste' that is actually due to the sense of smell?
80-90%
Where are the majority of taste buds located?
Papillae of tongue
What is the function of microvilli in taste buds?
To increase the surface area for binding to molecules
What is the location of the gustatory cortex?
Parietal lobe
What is the name of the fifth known taste?
Umami
What is the approximate number of olfactory receptor cells found in the olfactory epithelia in the roof of the nasal cavity?
10 - 20 million
What is the function of olfactory cells?
To detect odor
What is the function of olfactory cilia?
To detect odor molecules
What happens to the number of olfactory cells as we age?
It declines
Where do nerve fibers from similar olfactory cells lead to?
Olfactory bulb
What is unique about the perception of smell?
It does not require synapse in the thalamus
What determines the activation of different receptor proteins in the nasal cavity?
The different chemicals emanating from each flower
Test your knowledge of the sense of taste, including the structure and function of taste buds, the five known tastes, and the gustatory pathway. Learn about the biology of taste and how it is processed in the brain.
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