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Olfaction

Olfaction

The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...

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Related Experiment Video

Updated: Jun 19, 2026

Odorant-induced Responses Recorded from Olfactory Receptor Neurons using the Suction Pipette Technique

Odorant-induced Responses Recorded from Olfactory Receptor Neurons using the Suction Pipette Technique

Published on: April 5, 2012

Eppendorf winner. Evolution and revolution in odor detection

Richard Benton¹

¹Center for Integrative Genomics, University of Lausanne, CH-1015 Lausanne, Switzerland. richard.benton@unil.ch

Science (New York, N.Y.)

|October 17, 2009

Summary

No abstract available in PubMed .

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Last Updated: Jun 19, 2026

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