Encephalon basis' arteries in horses. Occipito-basilar system

Detalhes bibliográficos
Autor(a) principal: Campos, Aglai
Data de Publicação: 2003
Outros Autores: Prada, Irvênia Luiza de Santis, Santos Junior, Ivaldo dos, Santos, Djenane dos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Brazilian Journal of Veterinary Research and Animal Science
Texto Completo: https://www.revistas.usp.br/bjvras/article/view/11429
Resumo: Twenty four pieces of Throughbred horses were injected with coloured solution of Neoprene latex 650, kept in formalin solution and dissected. The arteries of the encephalon basis depend on two large sources, the occipital arteries (occipito-basilar system) and the internal carotid arteries (carotid system). The basilar artery results from the fusion of the right and left occipital arteries (95.8%) or yet it is the direct continuation of the right occipital artery (4.2%). At the level of cerebral peduncles, the basilar artery bifurcates and shows a variable number of anastomotic tracts with a retiary disposition. The resulting elements of this division are two well defined terminal branches, this way named up to where the cerebral caudal artery has its origin, at both sides. It was also seen the occurrence of anastomotic tracts related to the origin (37.5%) and the course of the basilar artery (20.8%). That artery gives numerous collaterals, the arteries: caudal cerebelar (100%), carotico-basilar (54.2%), labyrinthine (12.5%) and rostral cerebelar (100%). The basilar artery decreases the basilar artery's diameter in caudo-rostral direction and forms, with the most of its collateral branches, rostral acute angles. These facts indicate that the blood flow of the basilar artery is caudo-rostral. The arrangement of the occipito-basilar system arteries is situated between the medium and last types described by TESTUT³ and corresponds to the 2 beta category of the classification proposed by TANDLER², cited by DE VRIESE¹.
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spelling Encephalon basis' arteries in horses. Occipito-basilar systemArtérias da base do encéfalo de eqüinos. Sistema occipito-basilarArtérias EncefálicasEqüinosArtéria BasilarEncephalon ArteriesHorsesBasilar arteryTwenty four pieces of Throughbred horses were injected with coloured solution of Neoprene latex 650, kept in formalin solution and dissected. The arteries of the encephalon basis depend on two large sources, the occipital arteries (occipito-basilar system) and the internal carotid arteries (carotid system). The basilar artery results from the fusion of the right and left occipital arteries (95.8%) or yet it is the direct continuation of the right occipital artery (4.2%). At the level of cerebral peduncles, the basilar artery bifurcates and shows a variable number of anastomotic tracts with a retiary disposition. The resulting elements of this division are two well defined terminal branches, this way named up to where the cerebral caudal artery has its origin, at both sides. It was also seen the occurrence of anastomotic tracts related to the origin (37.5%) and the course of the basilar artery (20.8%). That artery gives numerous collaterals, the arteries: caudal cerebelar (100%), carotico-basilar (54.2%), labyrinthine (12.5%) and rostral cerebelar (100%). The basilar artery decreases the basilar artery's diameter in caudo-rostral direction and forms, with the most of its collateral branches, rostral acute angles. These facts indicate that the blood flow of the basilar artery is caudo-rostral. The arrangement of the occipito-basilar system arteries is situated between the medium and last types described by TESTUT³ and corresponds to the 2 beta category of the classification proposed by TANDLER², cited by DE VRIESE¹.Foram dissecadas 24 peças correspondentes a eqüinos da raça Puro Sangue Inglês, injetadas com Neoprene latex 650 corado e fixadas em formol a 25%. As artérias da base do encéfalo estudadas estão na dependência de duas grandes fontes representadas, uma delas pelas artérias occipitais direita e esquerda (sistema occipito-basilar) e, a outra, pelas artérias carótidas internas direita e esquerda (sistema carótico). A artéria basilar resulta da convergência das artérias occipitais direita e esquerda (95,8%), na região limítrofe entre medula espinhal e bulbo e termina dividindo-se, em correspondência à porção caudal dos pedúnculos cerebrais - com a ocorrência de variável número de tractos anastomóticos dispostos em rede - em dois bem definidos ramos terminais, assim considerados até a origem, em cada antímero, da artéria cerebral caudal. Observam-se ainda tractos anastomóticos relacionados à origem (37,5%) e ao percurso (20,8%) da artéria basilar, durante o qual ela emite numerosos colaterais, em ambos os antímeros, dos quais destacam-se as artérias cerebelar caudal (100%), carótico-basilar (54,2%), labiríntica (12,5% diretamente ou 62,5% indiretamente, como ramo da artéria cerebelar caudal) e artéria cerebelar rostral (100%). Os colaterais da artéria basilar com ela estabelecem, de modo geral, ângulo agudo voltado rostralmente. Observa-se ainda que a artéria basilar diminui progressivamente de calibre em sentido caudo-rostral. Pelos aspectos descritos, o padrão de comportamento das artérias do sistema occipito-basilar dos eqüinos estudados insere-se entre os tipos médio e final do considerado por Testut¹ e na categoria 2 beta da classificação proposta por Tandler² e referida por De Vriese³.Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia2003-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjvras/article/view/1142910.1590/S1413-95962003000800004Brazilian Journal of Veterinary Research and Animal Science; Vol. 40 (2003): Suplemento 2; 107-117Brazilian Journal of Veterinary Research and Animal Science; Vol. 40 (2003): Suplemento 2; 107-117Brazilian Journal of Veterinary Research and Animal Science; v. 40 (2003): Suplemento 2; 107-117Brazilian Journal of Veterinary Research and Animal Science; V. 40 (2003): Suplemento 2; 107-1171678-44561413-9596reponame:Brazilian Journal of Veterinary Research and Animal Scienceinstname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)instacron:USPporhttps://www.revistas.usp.br/bjvras/article/view/11429/13197Campos, AglaiPrada, Irvênia Luiza de SantisSantos Junior, Ivaldo dosSantos, Djenane dosinfo:eu-repo/semantics/openAccess2020-06-23T04:33:41Zoai:revistas.usp.br:article/11429Revistahttps://www.revistas.usp.br/bjvrasPUBhttps://www.revistas.usp.br/bjvras/oaibjvras@usp.br1413-95961413-9596opendoar:https://www.revistas.usp.br/bjvras/index2023-01-12T16:42:41.269331Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)false
dc.title.none.fl_str_mv Encephalon basis' arteries in horses. Occipito-basilar system
Artérias da base do encéfalo de eqüinos. Sistema occipito-basilar
title Encephalon basis' arteries in horses. Occipito-basilar system
spellingShingle Encephalon basis' arteries in horses. Occipito-basilar system
Campos, Aglai
Artérias Encefálicas
Eqüinos
Artéria Basilar
Encephalon Arteries
Horses
Basilar artery
title_short Encephalon basis' arteries in horses. Occipito-basilar system
title_full Encephalon basis' arteries in horses. Occipito-basilar system
title_fullStr Encephalon basis' arteries in horses. Occipito-basilar system
title_full_unstemmed Encephalon basis' arteries in horses. Occipito-basilar system
title_sort Encephalon basis' arteries in horses. Occipito-basilar system
author Campos, Aglai
author_facet Campos, Aglai
Prada, Irvênia Luiza de Santis
Santos Junior, Ivaldo dos
Santos, Djenane dos
author_role author
author2 Prada, Irvênia Luiza de Santis
Santos Junior, Ivaldo dos
Santos, Djenane dos
author2_role author
author
author
dc.contributor.author.fl_str_mv Campos, Aglai
Prada, Irvênia Luiza de Santis
Santos Junior, Ivaldo dos
Santos, Djenane dos
dc.subject.por.fl_str_mv Artérias Encefálicas
Eqüinos
Artéria Basilar
Encephalon Arteries
Horses
Basilar artery
topic Artérias Encefálicas
Eqüinos
Artéria Basilar
Encephalon Arteries
Horses
Basilar artery
description Twenty four pieces of Throughbred horses were injected with coloured solution of Neoprene latex 650, kept in formalin solution and dissected. The arteries of the encephalon basis depend on two large sources, the occipital arteries (occipito-basilar system) and the internal carotid arteries (carotid system). The basilar artery results from the fusion of the right and left occipital arteries (95.8%) or yet it is the direct continuation of the right occipital artery (4.2%). At the level of cerebral peduncles, the basilar artery bifurcates and shows a variable number of anastomotic tracts with a retiary disposition. The resulting elements of this division are two well defined terminal branches, this way named up to where the cerebral caudal artery has its origin, at both sides. It was also seen the occurrence of anastomotic tracts related to the origin (37.5%) and the course of the basilar artery (20.8%). That artery gives numerous collaterals, the arteries: caudal cerebelar (100%), carotico-basilar (54.2%), labyrinthine (12.5%) and rostral cerebelar (100%). The basilar artery decreases the basilar artery's diameter in caudo-rostral direction and forms, with the most of its collateral branches, rostral acute angles. These facts indicate that the blood flow of the basilar artery is caudo-rostral. The arrangement of the occipito-basilar system arteries is situated between the medium and last types described by TESTUT³ and corresponds to the 2 beta category of the classification proposed by TANDLER², cited by DE VRIESE¹.
publishDate 2003
dc.date.none.fl_str_mv 2003-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/11429
10.1590/S1413-95962003000800004
url https://www.revistas.usp.br/bjvras/article/view/11429
identifier_str_mv 10.1590/S1413-95962003000800004
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/11429/13197
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
dc.source.none.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science; Vol. 40 (2003): Suplemento 2; 107-117
Brazilian Journal of Veterinary Research and Animal Science; Vol. 40 (2003): Suplemento 2; 107-117
Brazilian Journal of Veterinary Research and Animal Science; v. 40 (2003): Suplemento 2; 107-117
Brazilian Journal of Veterinary Research and Animal Science; V. 40 (2003): Suplemento 2; 107-117
1678-4456
1413-9596
reponame:Brazilian Journal of Veterinary Research and Animal Science
instname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron:USP
instname_str Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron_str USP
institution USP
reponame_str Brazilian Journal of Veterinary Research and Animal Science
collection Brazilian Journal of Veterinary Research and Animal Science
repository.name.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
repository.mail.fl_str_mv bjvras@usp.br
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