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Related Concept Videos

Olfaction01:25

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...
Physiology of Smell and Olfactory Pathway01:20

Physiology of Smell and Olfactory Pathway

Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...

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Related Experiment Video

Updated: Jun 21, 2026

Recording Temperature-induced Neuronal Activity through Monitoring Calcium Changes in the Olfactory Bulb of Xenopus laevis
11:08

Recording Temperature-induced Neuronal Activity through Monitoring Calcium Changes in the Olfactory Bulb of Xenopus laevis

Published on: June 3, 2016

Glomerular microcircuits in the olfactory bulb.

Christiane Linster1, Thomas A Cleland

  • 1Computational Physiology Laboratory, Cornell University, Ithaca, NY 14853, USA. cl243@cornell.edu

Neural Networks : the Official Journal of the International Neural Network Society
|August 4, 2009
PubMed
Summary
This summary is machine-generated.

The olfactory bulb

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Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals
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Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals

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Quadruple Immunostaining of the Olfactory Bulb for Visualization of Olfactory Sensory Axon Molecular Identity Codes
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Quadruple Immunostaining of the Olfactory Bulb for Visualization of Olfactory Sensory Axon Molecular Identity Codes

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Related Experiment Videos

Last Updated: Jun 21, 2026

Recording Temperature-induced Neuronal Activity through Monitoring Calcium Changes in the Olfactory Bulb of Xenopus laevis
11:08

Recording Temperature-induced Neuronal Activity through Monitoring Calcium Changes in the Olfactory Bulb of Xenopus laevis

Published on: June 3, 2016

Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals
08:30

Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals

Published on: October 31, 2011

Quadruple Immunostaining of the Olfactory Bulb for Visualization of Olfactory Sensory Axon Molecular Identity Codes
06:32

Quadruple Immunostaining of the Olfactory Bulb for Visualization of Olfactory Sensory Axon Molecular Identity Codes

Published on: June 5, 2017

Area of Science:

  • Neuroscience
  • Olfactory system research

Background:

  • Olfactory bulb microcircuits are crucial for processing olfactory information.
  • These circuits feature extensive dendrodendritic interactions and unique cortical modifications.

Purpose of the Study:

  • To review the architecture and function of the glomerular network.
  • To synthesize recent experimental and theoretical findings on olfactory bulb microcircuits.

Main Methods:

  • Literature review of experimental and theoretical studies.
  • Analysis of circuit architecture and functional mechanisms.

Main Results:

  • Elucidation of mechanisms and functions of olfactory bulb microcircuits.
  • Understanding the role of these circuits in olfactory processing.

Conclusions:

  • The glomerular network is a key microcircuit in the olfactory bulb.
  • These microcircuits significantly contribute to odor perception and stimulus processing.