Wyniki wyszukiwania - Biblioteka Nauki

1

Nucleus olivaris in the beaver

100%

Szteyn S.

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nr 14-25

2

Structure and topography of dorsal funiculus nuclei in European bison

84%

Szteyn S. , Krawczuk-Robak A.

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nr 26-43

3

The neuronal structure of the red nucleus in guinea pig: Klüver-Barrera and Golgi studies

84%

Robak A. , Szteyn S.

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nr 3

4

The nuclei of the cerebellum in the roe deer

84%

Szteyn S.

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nr 20-27

5

Topography and structure of Corpus striatum in insectivora

67%

Szteyn S. , Gawronska B. , Szatkowski E.

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nr 1-10

6

Types of neurons in the dorsal parasympathetic nucleus of aurochs

67%

Szteyn S. , Szatkowski E. , Gawronska B.

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nr 3-4

7

Zakończenia nerwowe w więzadle szerokim macicy świni

67%

Wyrzykowski Z. , Lakomy M. , Szteyn S.

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1981

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nr 13(220)

8

The types of neurons in the claustrum of Bison bonasus: Nissl and Golgi study

67%

Rowniak M. , Szteyn S. , Robak A. , Klawon M.

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nr 4

9

Neurons of the substantia nigra in the European bison

67%

Szteyn S. , Robak A. , Rowniak M.

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nr 4

10

The types of neurons of the somatic oculomotor nucleus in the European bison. Nissl and Golgi studies

67%

Szteyn S. , Robak A. , Rowniak M.

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nr 4

11

The neuronal structure of paramamillary nuclei in Bison bonasus: Nissl and Golgi pictures

67%

Robak A. , Szteyn S. , Rowniak M.

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nr 2

12

The types of neurons in the neostriatum of Bison bonasus Nissl and Golgi study

59%

Rowniak M. , Szteyn S. , Robak A. , Klawon M. , Dusza M.

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tom 53

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nr 3

13

The cytoarchitectonic and neuronal structure of the red nucleus in guinea pig: Nissl and Golgi studies

59%

Robak A. , Szteyn S. , Bogus-Nowakowska K. , Doboszynska T. , Rowniak M.

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tom 59

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nr 4

EN

The present studies were carried out on the brains of adult guinea pigs, DunkinHartley strain. On the basis of preparations, they were stained according to the Nissl and the Klüver-Barrera method’s; a short description of the cytoarchitectonics and the characteristics of the rubral cells were written. The red nucleus (RN) of the guinea pig is 1.2 mm in length. Three cellular parts in RN, and three classes (A, B, C) of the rubral cells were distinguished. Taking into consideration the predominant cell size, RN was divided into magnocellular part (RNm), parvocellular part (RNp) and intermediate part (RNi). On the basis of Golgi impregnated preparations four neuronal types (I, II, III, IV) were distinguished. To sum up, in the guinea pig were observed: the large, mainly multipolar (type I) and bipolar (type II) spiny being coarse (class A) in Nissl material; the medium-sized, triangular, aspiny (type III) corresponding to the fine cells (class B); and the small, both spiny and aspiny neurons (type IV), which are the fine or achromatic cells (classes B or C) in Nissl stained slices. The highest degree of dendritic branching was observed in type I, whereas the lowest in cells of types III and IV.

14

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

51%

Bogus-Nowakowska K. , Robak A. , Szteyn S. , Rowniak M. , Najdzion J. , Wasilewska B.

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nr 4

367-376

EN

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.

15

A morphometric study of the preoptic area of the guinea pig

51%

Bogus-Nowakowska K. , Robak A. , Szteyn S. , Rowniak M. , Wasilewska B. , Najdzion J.

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nr 1

EN

The aim of the study was to provide the topography and morphometric characteristics of the preoptic area (POA) of the guinea pig. The study was carried out on the brains of sexually mature guinea pigs of both sexes. A uniform procedure was followed in the study of the paraffin-embedded brain tissue blocks of males and females. The blocks were cut in the coronal plane into 50 μm sections and stained according to the Nissl method. The guinea pig POA consists of four parts: the medial preoptic area (MPA), lateral preoptic area (LPA), periventricular preoptic nucleus (PPN), and median preoptic nucleus (MPN). The topography and general structure of POA parts are similar in males and females. However, the PPNa cells of females are more intensely stained and are more densely packed than the PPNa cells of males. For morphometric analysis, the MPA and LPA as well as PPN and MPN were considered respectively as uniform structures, namely MPA-LPA and PPN-MPN. The statistical analysis showed that the volume of the PPN-MPN was larger in males than in females, whereas the MPA-LPA volume did not differ between the sexes. Moreover, the numerical density and the total number of neurons were statistically larger in males than in females in both the MPA-LPA and PPN-MPN. The parameters describing POA neurons were larger for MPA-LPA neurons in comparison with the PPN-MPN neurons. However, in this respect no sex differences were observed in both studied complexes. (Folia Morphol 2010; 69, 1: 15–23)

16

The neuronal structure of the dorsal nucleus of the lateral geniculate body in the common shrew [Sorex araneus] and the bank vole [Clethrionomys glareolus] : Golgi and Nissl studies

51%

Najdzion J. , Wasilewska B. , Szteyn S. , Robak A. , Bogus-Nowakowska K. , Rowniak M.

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nr 4

352-358

EN

The topography and neuronal structure of the dorsal nucleus of the lateral geniculate body (GLd) of the common shrew and the bank vole are similar. The lateral geniculate body of both the species examined has a homogeneous structure and no observable cytoarchitectonic lamination. On the basis of the shape of the dendritic arbours as well as the pattern of dendritic arborisations the following two types of neurons were distinguished. Type I “bushy” neurons that have multipolar or round perikarya (common shrew perikarya 9–12 µm, bank vole perikarya 10–13 µm), with 4–6 short thick dendritic trunks that subdivide into many bush-like branches. The dendritic trunks are smooth, in contrast to the distal branches, which are covered with numerous spine-like protrusions of different lengths and forms. An axon emerges from the soma, sometimes very close to one of the primary dendrites. The type I neurons are typically projection cells that send their axons to the primary visual cortex. These neurons predominate in the GLd of both species. Type II neurons, which have an elongated soma with primary dendrites arising from opposite poles of the perikaryon (common shrew perikarya 8–10 µm, bank vole perikarya 9–11 µm). The dendritic arbours of these cells are less extensive and their dendrites have fewer spines than those of the type I neurons. Axons were seldom observed. The type II neurons are presumably interneurons and are definitely less numerous than the type I neurons.