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Olfactory Receptor Cells
Situated within the mucous membrane at the roof of the nasal cavity, olfactory receptor cells are specialized sensory neurons. As shown in side-view anatomical illustrations, they feature hair-like extensions that function as binding sites for odorants dissolved in mucus, initiating the sensory transduction process for smell before transmitting signals to the olfactory bulb.

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Olfactory Receptor Cells
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Olfactory Receptor Cells