Ultrastructure of the Myelinated and Unmyelinated Nerve Fibers of the Tongue Mucosa of Albinus Rat (Wistar) with Aging

The purpose of this paper was to study the sensory myelinated and unmyelinated nerve fibers found in the subepithelial lamina propria of tongue mucosa of aging rats. It was used the silver impregnation, transmission electron microscopy methods and morphometric measurements. The results revealed that...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Grisolia,D. F., Ogawa,K, Motoyama,A.A., Kronka,M. C., Carneiro Jr.,J. T., Duro,C. C., Watanabe,I
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2006
Materias:	Nerve fiber Myelinated fiber Unmyelinated fiber Tongue mucosa Aging rat TEM
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000400018
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-95022006000400018
record_format	dspace
spelling	oai:scielo:S0717-950220060004000182007-01-24Ultrastructure of the Myelinated and Unmyelinated Nerve Fibers of the Tongue Mucosa of Albinus Rat (Wistar) with AgingGrisolia,D. F.Ogawa,KMotoyama,A.A.Kronka,M. C.Carneiro Jr.,J. T.Duro,C. C.Watanabe,I Nerve fiber Myelinated fiber Unmyelinated fiber Tongue mucosa Aging rat TEM The purpose of this paper was to study the sensory myelinated and unmyelinated nerve fibers found in the subepithelial lamina propria of tongue mucosa of aging rats. It was used the silver impregnation, transmission electron microscopy methods and morphometric measurements. The results revealed that subepithelial nerve fiber bundles of the anterior, medium and posterior regions of tongue were arise from deep muscular layer of tongue. The nerve fiber bundles were verified inside of the connective tissue of lamina propria. These nerve fibers branched several times and into the connective tissue papillae they form a single or ramified sensory nerve endings. The fungiform and vallate papillae contain numerous nerve terminals. The fine structure demonstrated that in the axoplasm were noted the presence of neurofilaments, mitochondria and microtubules. Although the morphometric data of myelinated fibers showed that about 44% having larger diameter between 3 to 4 µm and the mean value was 4.5 µm. The largest diameter was 12 µm and the smaller was 1.4 um. The smallest diameter ranges from 1 to 3 µm, being that the mean value was 2.33 µm. Concerning to the thickness of myelin sheets were revealed the values ranging from 0.2 to 0.8 µm being that the 90% present the values around 0.5 µm. The unmyelinated fibers showed the largest diameter (62%) varying from 0.25 to 0.75 µm. The mean value was 0.6 µm being the maximum value was 3.17 µm and the minimum was 0.2 µm. The smallest diameter was obtained in 44% of unmyelinated fibers which the diameter ranges from 0.2 to 0.4 µm.Then maximum value obtained was 1 µm and the minimum was 0.12 µminfo:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.24 n.3 20062006-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000400018en10.4067/S0717-95022006000400018
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Nerve fiber Myelinated fiber Unmyelinated fiber Tongue mucosa Aging rat TEM
spellingShingle	Nerve fiber Myelinated fiber Unmyelinated fiber Tongue mucosa Aging rat TEM Grisolia,D. F. Ogawa,K Motoyama,A.A. Kronka,M. C. Carneiro Jr.,J. T. Duro,C. C. Watanabe,I Ultrastructure of the Myelinated and Unmyelinated Nerve Fibers of the Tongue Mucosa of Albinus Rat (Wistar) with Aging
description	The purpose of this paper was to study the sensory myelinated and unmyelinated nerve fibers found in the subepithelial lamina propria of tongue mucosa of aging rats. It was used the silver impregnation, transmission electron microscopy methods and morphometric measurements. The results revealed that subepithelial nerve fiber bundles of the anterior, medium and posterior regions of tongue were arise from deep muscular layer of tongue. The nerve fiber bundles were verified inside of the connective tissue of lamina propria. These nerve fibers branched several times and into the connective tissue papillae they form a single or ramified sensory nerve endings. The fungiform and vallate papillae contain numerous nerve terminals. The fine structure demonstrated that in the axoplasm were noted the presence of neurofilaments, mitochondria and microtubules. Although the morphometric data of myelinated fibers showed that about 44% having larger diameter between 3 to 4 µm and the mean value was 4.5 µm. The largest diameter was 12 µm and the smaller was 1.4 um. The smallest diameter ranges from 1 to 3 µm, being that the mean value was 2.33 µm. Concerning to the thickness of myelin sheets were revealed the values ranging from 0.2 to 0.8 µm being that the 90% present the values around 0.5 µm. The unmyelinated fibers showed the largest diameter (62%) varying from 0.25 to 0.75 µm. The mean value was 0.6 µm being the maximum value was 3.17 µm and the minimum was 0.2 µm. The smallest diameter was obtained in 44% of unmyelinated fibers which the diameter ranges from 0.2 to 0.4 µm.Then maximum value obtained was 1 µm and the minimum was 0.12 µm
author	Grisolia,D. F. Ogawa,K Motoyama,A.A. Kronka,M. C. Carneiro Jr.,J. T. Duro,C. C. Watanabe,I
author_facet	Grisolia,D. F. Ogawa,K Motoyama,A.A. Kronka,M. C. Carneiro Jr.,J. T. Duro,C. C. Watanabe,I
author_sort	Grisolia,D. F.
title	Ultrastructure of the Myelinated and Unmyelinated Nerve Fibers of the Tongue Mucosa of Albinus Rat (Wistar) with Aging
title_short	Ultrastructure of the Myelinated and Unmyelinated Nerve Fibers of the Tongue Mucosa of Albinus Rat (Wistar) with Aging
title_full	Ultrastructure of the Myelinated and Unmyelinated Nerve Fibers of the Tongue Mucosa of Albinus Rat (Wistar) with Aging
title_fullStr	Ultrastructure of the Myelinated and Unmyelinated Nerve Fibers of the Tongue Mucosa of Albinus Rat (Wistar) with Aging
title_full_unstemmed	Ultrastructure of the Myelinated and Unmyelinated Nerve Fibers of the Tongue Mucosa of Albinus Rat (Wistar) with Aging
title_sort	ultrastructure of the myelinated and unmyelinated nerve fibers of the tongue mucosa of albinus rat (wistar) with aging
publisher	Sociedad Chilena de Anatomía
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000400018
work_keys_str_mv	AT grisoliadf ultrastructureofthemyelinatedandunmyelinatednervefibersofthetonguemucosaofalbinusratwistarwithaging AT ogawak ultrastructureofthemyelinatedandunmyelinatednervefibersofthetonguemucosaofalbinusratwistarwithaging AT motoyamaaa ultrastructureofthemyelinatedandunmyelinatednervefibersofthetonguemucosaofalbinusratwistarwithaging AT kronkamc ultrastructureofthemyelinatedandunmyelinatednervefibersofthetonguemucosaofalbinusratwistarwithaging AT carneirojrjt ultrastructureofthemyelinatedandunmyelinatednervefibersofthetonguemucosaofalbinusratwistarwithaging AT durocc ultrastructureofthemyelinatedandunmyelinatednervefibersofthetonguemucosaofalbinusratwistarwithaging AT watanabei ultrastructureofthemyelinatedandunmyelinatednervefibersofthetonguemucosaofalbinusratwistarwithaging
_version_	1718444585360818176

Ultrastructure of the Myelinated and Unmyelinated Nerve Fibers of the Tongue Mucosa of Albinus Rat (Wistar) with Aging

Ejemplares similares