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[The human olfactory system. Anatomy and physiology].

J Albrecht1, M Wiesmann

  • 1Abteilung für Neuroradiologie, Ludwig-Maximilians-Universität, Marchioninistrasse 15, 81377 München.

Der Nervenarzt
|July 28, 2006
PubMed
Summary

The human sense of smell, though ancient, is increasingly understood through advances in olfactory and trigeminal system research. This article details the anatomy and physiology of smell, incorporating recent biomolecular and neuroimaging findings.

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Area of Science:

  • Neuroscience
  • Sensory Biology

Context:

  • Olfaction is a phylogenetically ancient human sense, yet research publications lag behind other sensory systems.
  • Recent years have seen significant progress in understanding olfactory processes, from odorant reception to central nervous system processing.

Purpose:

  • To provide a comprehensive overview of the anatomy and physiology of the human sense of smell.
  • To highlight recent advancements in biomolecular experiments and functional neuroimaging related to olfaction.

Summary:

  • The human olfactory system involves sensory input from both the olfactory and trigeminal neural systems.
  • Key processes include odorant interaction with nasal mucosa receptors, signal transduction, and neural processing in the brain.

Impact:

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  • Enhances understanding of the complex mechanisms underlying human olfaction.
  • Provides a foundation for future research into smell disorders and sensory integration.