Vol 62, No 1 (2003)
Original article
Submitted: 2012-02-06
Published online: 2002-12-04
The neuronal structure of the red nucleus in newborn guinea pigs
Anna Robak, Stanisław Szteyn, Krystyna Bogus-Nowakowska, Maciej Równiak
Folia Morphol 2003;62(1):1-9.
Vol 62, No 1 (2003)
ORIGINAL ARTICLES
Submitted: 2012-02-06
Published online: 2002-12-04
Abstract
The preparations, stained according to the Nissl and Klüver-Barrera methods,
were used to describe the topography and morphology of the red nucleus (RN)
as well as the structure of the rubral perikarya in newborn (P0) guinea pigs. The Golgi impregnated preparations were used to distinguish types of neurons. RN is a uniform cell group and has the length from 740 to 860 µm. The Nissl stained perikarya were classified into three categories: big, medium-sized and small (A, B, C, respectively). The big perikarya, which contain a lot of tigroidal
substance, were mainly observed at the caudal and ventral portions of RN. The
small perikarya often have multiple nucleoli. The impregnated neurons were
classified into 5 types: 1 - large, aspiny, rich-arborised multipolar cells, 2 - large and medium sized, spiny, rich-arborised fusiform or pear-shaped cells, 3 - medium-sized, spiny, rich-arborised rounded cells, 4 - medium-sized, spiny, richarborised
bipolar cells, 5 - small and single medium-sized cells. The 5th type constitutes a heterogeneous population and also has neurons in different developmental stages. Intraspecies variations concerning both the length of RN and a number of the triangular perikarya of the red nucleus were observed in the examined guinea pigs.
Abstract
The preparations, stained according to the Nissl and Klüver-Barrera methods,
were used to describe the topography and morphology of the red nucleus (RN)
as well as the structure of the rubral perikarya in newborn (P0) guinea pigs. The Golgi impregnated preparations were used to distinguish types of neurons. RN is a uniform cell group and has the length from 740 to 860 µm. The Nissl stained perikarya were classified into three categories: big, medium-sized and small (A, B, C, respectively). The big perikarya, which contain a lot of tigroidal
substance, were mainly observed at the caudal and ventral portions of RN. The
small perikarya often have multiple nucleoli. The impregnated neurons were
classified into 5 types: 1 - large, aspiny, rich-arborised multipolar cells, 2 - large and medium sized, spiny, rich-arborised fusiform or pear-shaped cells, 3 - medium-sized, spiny, rich-arborised rounded cells, 4 - medium-sized, spiny, richarborised
bipolar cells, 5 - small and single medium-sized cells. The 5th type constitutes a heterogeneous population and also has neurons in different developmental stages. Intraspecies variations concerning both the length of RN and a number of the triangular perikarya of the red nucleus were observed in the examined guinea pigs.
Keywords
red nucleus; morphology; types of neurons; Nissl and Golgi studies; neonates
Title
The neuronal structure of the red nucleus in newborn guinea pigs
Journal
Folia Morphologica
Issue
Vol 62, No 1 (2003)
Article type
Original article
Pages
1-9
Published online
2002-12-04
Page views
494
Article views/downloads
893
Bibliographic record
Folia Morphol 2003;62(1):1-9.
Keywords
red nucleus
morphology
types of neurons
Nissl and Golgi studies
neonates
Authors
Anna Robak
Stanisław Szteyn
Krystyna Bogus-Nowakowska
Maciej Równiak