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Related Concept Videos

Olfaction01:25

Olfaction

47.0K
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...
47.0K
Physiology of Smell and Olfactory Pathway01:20

Physiology of Smell and Olfactory Pathway

11.0K
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...
11.0K
Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

10.5K
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...
10.5K

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Related Experiment Video

Updated: Nov 21, 2025

Simultaneous Long-term Recordings at Two Neuronal Processing Stages in Behaving Honeybees
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Simultaneous Long-term Recordings at Two Neuronal Processing Stages in Behaving Honeybees

Published on: July 21, 2014

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Olfactory coding in honeybees.

Marco Paoli1, Giovanni C Galizia2

  • 1Research Centre on Animal Cognition, Center for Integrative Biology, CNRS, University of Toulouse, 31062, Toulouse, France. mar.paoli@gmail.com.

Cell and Tissue Research
|January 14, 2021
PubMed
Summary
This summary is machine-generated.

Honeybees (Apis mellifera) use complex olfactory behaviors for communication and colony regulation. Their well-studied olfactory system offers insights into neural circuits, perception, and memory formation.

Keywords:
HoneybeeOlfactionOlfactory codingOlfactory learningOlfactory system

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Tactile Conditioning And Movement Analysis Of Antennal Sampling Strategies In Honey Bees Apis mellifera L.
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Area of Science:

  • Neuroscience
  • Animal Behavior
  • Sensory Biology

Background:

  • The western honeybee (Apis mellifera) possesses a small nervous system but exhibits complex olfactory capabilities.
  • Honeybees utilize olfactory cues for vital functions like communication and maintaining colony homeostasis.
  • Their olfactory system serves as a powerful model for studying neural circuits and sensory perception.

Purpose of the Study:

  • To review the fundamental aspects of honeybee olfaction.
  • To explore the neuroanatomy, neurophysiology, and molecular mechanisms underlying olfactory perception and learning in honeybees.
  • To highlight the honeybee as a valuable research model for olfactory coding and memory.

Main Methods:

  • Review of existing histological, neurophysiological, and behavioral data.
  • Discussion of environmental odorants and their role in bee communication and colony regulation.
  • Exploration of cellular and molecular mechanisms of olfactory memory formation.

Main Results:

  • Honeybees navigate their environment and communicate using a diverse range of odorants.
  • The neuroanatomy and neurophysiology of the honeybee olfactory circuit have been extensively characterized.
  • Key cellular and molecular pathways involved in olfactory memory formation have been identified.

Conclusions:

  • The honeybee's olfactory system is a robust model for understanding fundamental principles of olfactory coding and learning.
  • Integrating historical data with modern genetic tools enhances the study of honeybee olfaction.
  • Continued research on honeybee olfaction promises significant advancements in neuroscience and cognitive science.