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Smell/Olfaction (Olfactory Transduction Pathway (Activation of adenylyl…
Smell/Olfaction
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Olfactory epithelium: a thin sheet of cells high up in the nasal cavity - contains three main types of cells
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Basal cells: source of new cells, i.e. stem cells
Odorants dissolve in the mucus layer, bind to odorant receptors and activate transduction processes in neurons
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Olfactory maps: ordered arrangements of neurons that correlate with features of the environment (Spatial)
There is some evidence that the timing of stimuli and the transduction of smell signals is important to the recognition of smells (Temporal)
Population coding also plays a role in olfaction, as signals activate multiple receptors and those specific combinations are able to encode all of the different scents we experience