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Organization of olfactory pathways. Kensaku MORI 1 1Department of Physiology, Gunma University School of Medicine pp.320-329
Published Date 1987/4/10
DOI https://doi.org/10.11477/mf.1431905887
  • Abstract
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Most mammals have two relatively independent olfactory systems, the main and accessory olfac-tory systems. The receptor cells of the main olfactory system (olfactory receptor cells) lie in the olfactory epithelium of the nasal cavity and send their axons (olfactory nerve fibers) to the main olfactory bulb. The accessory olfactory system has its receptor cells (vomeronasal receptor cells) in the sensory epithelium of the vomeronasal organ. The vomeronasal receptor cells project their axons (vomeronasal nerve fibers) to the accessory olfactory bulb.

It has long been assumed that olfactory re-ceptor cells are differentiated into at least several functional subsets. However, apparent morpho-logical homogeneity of the olfactory receptor cells has precluded anatomical classification of receptor cell subtypes. Recent progress in the hybridoma technique and histochemical methods has provided evidences that olfactory receptor cells are chemi-cally heterogeneous and can be classified histo-chemically into subsets. This review describes recent advances of our knowledge of subsets of olfactory and vomeronasal receptor cells together with their axonal projection patterns in the main and accessory olfactory bulbs.


Copyright © 1987, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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