Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 7-Day Trial for You or Your Team.

Learn More →

Topographic organization of the projections from the entorhinal area to the hippocampal formation of the rat

Topographic organization of the projections from the entorhinal area to the hippocampal formation... The present study re‐examines, with autoradiographic methods, the pattern of termination of fibers originating from various medio‐lateral divisions of the entorhinal cortex on dentate granule cells and on hippocampa pyramidal cells of the rat. Entorhinal fibers were found to distribute in a proximodistal gradient along the dendrites of dentate granule cells, with afferents from the medial entorhinal area terminating in the innermost portion of the entorhinal synaptic field, afferents from the lateral entorhinal area terminating in the most superficial portions of the entorhinal synaptic field, and intermediate medio‐lateral locations in the entorhinal area terminating in intermediate loca tions in the entorhinal synaptic zone. A similar graded pattern of termination of medial and lateral entorhinal fibers was apparent in the very slight crossed projection of the entorhinal area to the contralateral dentate gyrus. In addition, a comparable gradient in the pattern of termination of entorhinal fibers was evident in the entorhinal projection field in the distal dendritic regions of the pyramidal cells of regio inferior of the hippocampus proper. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Journal of Comparative Neurology Wiley

Topographic organization of the projections from the entorhinal area to the hippocampal formation of the rat

The Journal of Comparative Neurology , Volume 167 (3) – Jan 1, 1976

Loading next page...
 
/lp/wiley/topographic-organization-of-the-projections-from-the-entorhinal-area-8gvGv8a5A2

References (30)

Publisher
Wiley
Copyright
"Copyright © 1976 Wiley Subscription Services, Inc., A Wiley Company"
ISSN
0021-9967
eISSN
1096-9861
DOI
10.1002/cne.901670303
pmid
1270625
Publisher site
See Article on Publisher Site

Abstract

The present study re‐examines, with autoradiographic methods, the pattern of termination of fibers originating from various medio‐lateral divisions of the entorhinal cortex on dentate granule cells and on hippocampa pyramidal cells of the rat. Entorhinal fibers were found to distribute in a proximodistal gradient along the dendrites of dentate granule cells, with afferents from the medial entorhinal area terminating in the innermost portion of the entorhinal synaptic field, afferents from the lateral entorhinal area terminating in the most superficial portions of the entorhinal synaptic field, and intermediate medio‐lateral locations in the entorhinal area terminating in intermediate loca tions in the entorhinal synaptic zone. A similar graded pattern of termination of medial and lateral entorhinal fibers was apparent in the very slight crossed projection of the entorhinal area to the contralateral dentate gyrus. In addition, a comparable gradient in the pattern of termination of entorhinal fibers was evident in the entorhinal projection field in the distal dendritic regions of the pyramidal cells of regio inferior of the hippocampus proper.

Journal

The Journal of Comparative NeurologyWiley

Published: Jan 1, 1976

There are no references for this article.