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Cytoarchitecture, neuronal composition, and entorhinal afferents of the flying fox hippocampus

Cytoarchitecture, neuronal composition, and entorhinal afferents of the flying fox hippocampus In a comparative approach, the anatomical organization of the hippocampus was investigated in two species of megachiropteran bats, the grey‐headed flying fox, Pteropus poliocephalus, and the little red flying fox,Pteropus scapulatus. In general, the cytoarchitectonic appearance of the flying fox hippocampus corresponded well with that of other mammals, revealing all major subdivisions. While the dentate fascia was trilaminated with a molecular layer, a granule cell layer, and a distinct polymorphic layer, the ammonic subfields were subdivided into stratum lacunosum moleculare, stratum radiatum, stratum lucidum or mossy fiber layer (restricted to the CA3 region), pyramidal cell layer, and stratum oriens. In Ammon's horn, only subfields CA1, CA3, and CA3c were clearly discernible, whereas the CA2 region remained indistinct. In some cytoarchitectonic features, such as the dispersion of the pyramidal layer in CA1, the megachiropteran hippocampus resembled the corresponding region in primates. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Hippocampus Wiley

Cytoarchitecture, neuronal composition, and entorhinal afferents of the flying fox hippocampus

Hippocampus , Volume 1 (2) – Jan 2, 1991

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References (116)

Publisher
Wiley
Copyright
Copyright © 1991 Wiley Subscription Services
ISSN
1050-9631
eISSN
1098-1063
DOI
10.1002/hipo.450010203
pmid
1727000
Publisher site
See Article on Publisher Site

Abstract

In a comparative approach, the anatomical organization of the hippocampus was investigated in two species of megachiropteran bats, the grey‐headed flying fox, Pteropus poliocephalus, and the little red flying fox,Pteropus scapulatus. In general, the cytoarchitectonic appearance of the flying fox hippocampus corresponded well with that of other mammals, revealing all major subdivisions. While the dentate fascia was trilaminated with a molecular layer, a granule cell layer, and a distinct polymorphic layer, the ammonic subfields were subdivided into stratum lacunosum moleculare, stratum radiatum, stratum lucidum or mossy fiber layer (restricted to the CA3 region), pyramidal cell layer, and stratum oriens. In Ammon's horn, only subfields CA1, CA3, and CA3c were clearly discernible, whereas the CA2 region remained indistinct. In some cytoarchitectonic features, such as the dispersion of the pyramidal layer in CA1, the megachiropteran hippocampus resembled the corresponding region in primates.

Journal

HippocampusWiley

Published: Jan 2, 1991

Keywords: ; ; ; ; ;

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