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9 Cards in this Set
- Front
- Back
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Olfactory nerve concerned with special sense of ...
... - means loss of smell is the symptom of disease of the olfactory nerves - test by applying an odorant to either nostril Aging itself and AD is another common phenomena associated with loss of olfactory sense |
smell
Anosmia |
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The olfactory epithelium contains 3 main cell types:
1. ... cells -site of olfactory transduction -... neurons, with axons that penetrate the CNS -humans have 6-10 million at any one time -continually grow, die and regenerate over 4-6 wk cycle 2. ... cells -similar to glia -produce mucous (among other things) 3. ... cells -source of new receptor cells |
olfactory receptor
bipolar supporting basal |
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look at slide 13
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ok
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Olfactory receptors:
Encoded for by a large multigene family (at least ~1000 members) All have same general structure but increased sequence diversity -G protein-coupled receptors (GPCRs): 7 transmembrane domains – related to visual opsin ... allows for identification of a huge variety of different chemical structures |
Diversity
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Adaptation of the odor response:
... Organ: -Paired accessory olfactory organs at the base of the nasal septum - Involved in behavioral responses to ... |
Vomeronasal
pheromones |
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... stimuli may also induce calming or aggressive behavior
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Olfactory
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Olfactory nerve is the only nerve that comes off the ...
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telencephalon
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look at slide 28-56
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ok
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What’s in the anterior commissure that deals with olfactory system?
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Centrifugal fibers that go from one side to the other.
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