Olfactory neurons are excited: Question 19 options: By air By chemicals dissolved in mucus By mechanical stimulus None of the above
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Olfactory neurons are responsible for the sense of smell and are located in the nasal cavity. Show more…
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In olfaction, (a) pheromones stimulate the taste buds (b) the number of odorous molecules determines the magnitude of the receptor potential (c) chemical signals are converted directly into electrical signals (d) a G protein is activated and leads to the closing of gated channels (e) the concentration of cyclic AMP increases, leading to hyperpolarization of the receptor
The adequate stimuli for olfactory receptors are chemicals; typically odorant molecules. Which of the following modalities will induce the largest amplitude receptor potential in the olfactory receptor? a) moderate-intensity chemical b) high-intensity light c) moderate-intensity pressure d) moderate-intensity heat
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Airborne chemicals are most likely to stimulate olfactory receptors, taste receptors for umami, and taste receptors for bitter.
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