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Olfactory epithelium
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Pseudostratified ciliated columnar epithelial tissueCovers superior nasal conchae of nasal cavityContains olfactory receptor cells
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Olfactory receptor cells
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Specialized cells sensitive to odorantsCome in several different types
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Olfactory cilia
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Binding site of odorant moleculesIncreases surface area for reception
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Supporting cells
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Support olfactory receptor cells Produce mucus to dissolve odorants
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Basal cells
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Stem cells for receptor cell replacement
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Olfactory gland
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Produce mucus to dissolve odorants
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Cribriform plate
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Openings in ethmoid bone Allow assage of olfactory nerve fibers
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Olfactory nerves
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Axon portion of olfactory receptor cells
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Mitral cells
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Second-order neurons Conduct sensory impulses along optic tract
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Olfactory tract
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Cranial nerve, sensory for smell Carries sensory input to olfactory cortex and limbic system
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