Vol 58, No 1 (1999)
ORIGINAL ARTICLES
Published online: 2000-01-25
Submitted: 2012-02-06
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The piriform cortex and the endopiriform nucleus in the rat reveal generally similar pattern of connections

Kowiański, P, Lipowska M, Moryś J
Folia Morphol 1999;58(1):9-19.
Vol 58, No 1 (1999)
ORIGINAL ARTICLES
Published online: 2000-01-25
Submitted: 2012-02-06

Abstract

The afferent and efferent connections of the piriform cortex and the endopiriform nucleus in the rat were studied by the method of axonal transport of two fluorescent tracers: Fluoro-Gold and Fluoro-Ruby. The results indicate that both structures possess not only the connections with the olfactory system, but also the reciprocal connections with the limbic system (entorhinal cortex, amygdaloid body), thalamus (mediodorsal and midline nuclei), extrapyramidal system (ventral part of the nucleus accumbens). The topographic differences in the organisation of the association connections between the anterior and posterior parts of the piriform cortex are reported. Additionally, the reciprocal and relatively numerous connections between the endopiriformis nucleus and the piriform cortex may result in their modulatory function, which in some pathological circumstances may have a critical significance in epileptogenesis.

Abstract

The afferent and efferent connections of the piriform cortex and the endopiriform nucleus in the rat were studied by the method of axonal transport of two fluorescent tracers: Fluoro-Gold and Fluoro-Ruby. The results indicate that both structures possess not only the connections with the olfactory system, but also the reciprocal connections with the limbic system (entorhinal cortex, amygdaloid body), thalamus (mediodorsal and midline nuclei), extrapyramidal system (ventral part of the nucleus accumbens). The topographic differences in the organisation of the association connections between the anterior and posterior parts of the piriform cortex are reported. Additionally, the reciprocal and relatively numerous connections between the endopiriformis nucleus and the piriform cortex may result in their modulatory function, which in some pathological circumstances may have a critical significance in epileptogenesis.
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Keywords

Endopiriform nucleus. Piriform cortex. Connections. Rat. Retrograde transport. Fluorescent tracers

About this article
Title

The piriform cortex and the endopiriform nucleus in the rat reveal generally similar pattern of connections

Journal

Folia Morphologica

Issue

Vol 58, No 1 (1999)

Pages

9-19

Published online

2000-01-25

Bibliographic record

Folia Morphol 1999;58(1):9-19.

Keywords

Endopiriform nucleus. Piriform cortex. Connections. Rat. Retrograde transport. Fluorescent tracers

Authors

Kowiański
P
Lipowska M
Moryś J

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