open access

Vol 59, No 2 (2000)
ORIGINAL ARTICLES
Published online: 2000-02-16
Submitted: 2012-02-06
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Types of neurons of the subthalamic nucleus and zona incerta in the guinea pig — Nissl and Golgi study

Anna Robak, Krystyna Bogus-Nowakowska, Stanisław Szteyn
Folia Morphol 2000;59(2):85-89.

open access

Vol 59, No 2 (2000)
ORIGINAL ARTICLES
Published online: 2000-02-16
Submitted: 2012-02-06

Abstract

The studies were carried out on the subthalamus of adult guinea pigs. Golgi impregnation, Nissl and Klüver-Barrera methods were used for the study. In Nissl stained sections the subthalamic neuronal population consists of multipolar, fusiform, oval and pear-shaped perikarya. In two studied areas: nucleus subthalamicus (STN) and zona incerta (ZI) three types of neurons were distinguished. Type I, multipolar neurons with quadrangular, triangular or oval perikarya. They have 3–6 primary dendrites wich run slightly wavy and spread out in all directions. Type II, bipolar neurons with fusiform or semilunar perikarya, they have two primary dendrites. Type III, pear-shaped neurons with 1–2 dendritic trunks arising from one pole of the neuron. In all types of neurons axon emerges from the perikaryon or initial segment of a dendritic trunk and can be followed at a maximum distance of about 50 μm.

Abstract

The studies were carried out on the subthalamus of adult guinea pigs. Golgi impregnation, Nissl and Klüver-Barrera methods were used for the study. In Nissl stained sections the subthalamic neuronal population consists of multipolar, fusiform, oval and pear-shaped perikarya. In two studied areas: nucleus subthalamicus (STN) and zona incerta (ZI) three types of neurons were distinguished. Type I, multipolar neurons with quadrangular, triangular or oval perikarya. They have 3–6 primary dendrites wich run slightly wavy and spread out in all directions. Type II, bipolar neurons with fusiform or semilunar perikarya, they have two primary dendrites. Type III, pear-shaped neurons with 1–2 dendritic trunks arising from one pole of the neuron. In all types of neurons axon emerges from the perikaryon or initial segment of a dendritic trunk and can be followed at a maximum distance of about 50 μm.
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Keywords

subthalamic nucleus; zona incerta; types of neurons; Golgi and

About this article
Title

Types of neurons of the subthalamic nucleus and zona incerta in the guinea pig — Nissl and Golgi study

Journal

Folia Morphologica

Issue

Vol 59, No 2 (2000)

Pages

85-89

Published online

2000-02-16

Bibliographic record

Folia Morphol 2000;59(2):85-89.

Keywords

subthalamic nucleus
zona incerta
types of neurons
Golgi and

Authors

Anna Robak
Krystyna Bogus-Nowakowska
Stanisław Szteyn

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