open access

Vol 65, No 4 (2006)
ORIGINAL ARTICLES
Published online: 2006-09-18
Submitted: 2012-02-06
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The neuronal structure of the preoptic area in the mole and the rabbit: Golgi and Nissl studies

Bogus-Nowakowska K, Robak A, Szteyn S, Równiak M, Najdzion J, Wasilewska B
Folia Morphol 2006;65(4):367-376.

open access

Vol 65, No 4 (2006)
ORIGINAL ARTICLES
Published online: 2006-09-18
Submitted: 2012-02-06

Abstract

The present studies were carried out on the brains of the adult mole and rabbit. The preparations were made by means of the Golgi technique and the Nissl method. Two types of neurons were distinguished in the preoptic area (POA) of both species: bipolar and multipolar. The bipolar neurons have oval, fusiform or round perikarya and two dendritic trunks arising from the opposite poles of the cell body. The dendrites bifurcate once or twice. The dendritic branches have swellings, single spine-like and filiform processes. The multipolar neurons usually have triangular and quadrangular perikarya and from 3 to 5 dendritic trunks. The dendrites of the mole neurons branch sparsely, whereas the dendrites of the rabbit neurons display 2 or 3 divisions. On the dendritic branches varicosities and different protuberances were observed. The general morphology of the bipolar and multipolar neurons is similar in the mammals studied, although the neurons of the rabbit POA display a more complicated structure. Their dendritic branches show more divisions and possess more swellings and different processes than the dendrites of the neurons of the mole POA. Furthermore, of the multipolar neurons only the dendrites in POA of the rabbit were observed to have a rosary-like beaded appearance.

Abstract

The present studies were carried out on the brains of the adult mole and rabbit. The preparations were made by means of the Golgi technique and the Nissl method. Two types of neurons were distinguished in the preoptic area (POA) of both species: bipolar and multipolar. The bipolar neurons have oval, fusiform or round perikarya and two dendritic trunks arising from the opposite poles of the cell body. The dendrites bifurcate once or twice. The dendritic branches have swellings, single spine-like and filiform processes. The multipolar neurons usually have triangular and quadrangular perikarya and from 3 to 5 dendritic trunks. The dendrites of the mole neurons branch sparsely, whereas the dendrites of the rabbit neurons display 2 or 3 divisions. On the dendritic branches varicosities and different protuberances were observed. The general morphology of the bipolar and multipolar neurons is similar in the mammals studied, although the neurons of the rabbit POA display a more complicated structure. Their dendritic branches show more divisions and possess more swellings and different processes than the dendrites of the neurons of the mole POA. Furthermore, of the multipolar neurons only the dendrites in POA of the rabbit were observed to have a rosary-like beaded appearance.
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Keywords

preoptic area; types of neurons; Nissl and Golgi studies; mole; rabbit

About this article
Title

The neuronal structure of the preoptic area in the mole and the rabbit: Golgi and Nissl studies

Journal

Folia Morphologica

Issue

Vol 65, No 4 (2006)

Pages

367-376

Published online

2006-09-18

Bibliographic record

Folia Morphol 2006;65(4):367-376.

Keywords

preoptic area
types of neurons
Nissl and Golgi studies
mole
rabbit

Authors

Bogus-Nowakowska K
Robak A
Szteyn S
Równiak M
Najdzion J
Wasilewska B

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