Estudo morfométrico e histológico da trabécula septomarginal em corações bovinos e suínos

Detalhes bibliográficos
Autor(a) principal: Nascimento, Sergio Ricardo Rios [UNIFESP]
Data de Publicação: 2018
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UNIFESP
Texto Completo: https://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=7024808
https://repositorio.unifesp.br/handle/11600/52330
Resumo: Objective: analyze the anatomy and histology of the septomarginal trabecula of bovine and swine hearts, identifying possible macro and microscopic variations. Methods: septomarginal trabeculae from 34 bovine hearts and 12 swine hearts were analyzed for their macroscopic morphology and, after being fixed in Bouin's solution, processed, sectioned in microtome (5 μm) and stained, were analyzed histologically. Results: in all hearts evaluated, the septomarginal trabecula presented as a smooth tubular structure, of fibromuscular consistency, with variable length and diameter. The anatomical variations observed included trabeculae with more than one marginal fixation, of two to four branches, and unique septal fixation, besides several sizes in their caliber. Histologically, these structures were constituted by cardiac muscle fibers, connective tissue, vascular tissue and myofibril conduction, the Purkinje fibers. In the samples of bovine and swine septomarginal trabeculae, which presented a smaller diameter, connective tissue predominated, and cardiac muscle tissue was scarcer, whereas in the thicker samples, predominance was of cardiac striated muscle tissue. These findings were corroborated by the stereological analyzes. Conclusions: there are significant macro and microscopic differences between the septomarginal trabeculae as regards their diameter and constituent tissue and may lead to possible changes in cardiac physiology.
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spelling Estudo morfométrico e histológico da trabécula septomarginal em corações bovinos e suínosMorphometric and histological study of the septomarginal trabecula of bovine and swine hearts.Heart conduction systemVeterinary anatomyPurkinje fibers, HistologySistema de condução cardíacoAnatomia veterináriaFibras de Purkinje, HistologiaObjective: analyze the anatomy and histology of the septomarginal trabecula of bovine and swine hearts, identifying possible macro and microscopic variations. Methods: septomarginal trabeculae from 34 bovine hearts and 12 swine hearts were analyzed for their macroscopic morphology and, after being fixed in Bouin's solution, processed, sectioned in microtome (5 μm) and stained, were analyzed histologically. Results: in all hearts evaluated, the septomarginal trabecula presented as a smooth tubular structure, of fibromuscular consistency, with variable length and diameter. The anatomical variations observed included trabeculae with more than one marginal fixation, of two to four branches, and unique septal fixation, besides several sizes in their caliber. Histologically, these structures were constituted by cardiac muscle fibers, connective tissue, vascular tissue and myofibril conduction, the Purkinje fibers. In the samples of bovine and swine septomarginal trabeculae, which presented a smaller diameter, connective tissue predominated, and cardiac muscle tissue was scarcer, whereas in the thicker samples, predominance was of cardiac striated muscle tissue. These findings were corroborated by the stereological analyzes. Conclusions: there are significant macro and microscopic differences between the septomarginal trabeculae as regards their diameter and constituent tissue and may lead to possible changes in cardiac physiology.Objetivo: analisar a anatomia e a histologia da trabécula septomarginal de corações bovinos e suínos, identificando possíveis variações macro e microscópicas. Métodos: as trabéculas septomarginais de 34 corações bovinos e 12 corações suínos foram analisadas quanto à sua morfologia macroscópica e, após serem fixadas em solução de Bouin, processadas, seccionadas em micrótomo (5μm) e coradas, foram analisadas histologicamente. Resultados: em todos os corações avaliados, a trabécula septomarginal apresentouse como uma estrutura tubular lisa, de consistência fibromuscular, com comprimento e diâmetro variáveis. As variações anatômicas observadas incluíram trabéculas com mais de uma fixação marginal, de duas a quatro ramificações, e única fixação septal, além de variados tamanhos em seu calibre. Histologicamente, estas estruturas mostraramse constituídas por fibras musculares cardíacas, tecido conjuntivo, tecido vascular e miofibrilas de condução, as fibras de Purkinje. Nas amostras de trabéculas septomarginais bovinas e suínas, que apresentaram menor diâmetro, foi notada predominância de tecido conjuntivo e o tecido muscular cardíaco era mais escasso, enquanto que, nas amostras de maior espessura, a predominância foi de tecido muscular estriado cardíaco. Esses achados foram corroborados pelas análises estereológicas. Conclusões: há significativas diferenças macro e microscópicas entre as trabéculas septomarginais quanto ao seu diâmetro e tecido constituinte, podendo acarretar possíveis alterações na fisiologia cardíaca.Dados abertos - Sucupira - Teses e dissertações (2018)Universidade Federal de São Paulo (UNIFESP)Ruiz, Cristiane Reginahttp://lattes.cnpq.br/5165811469866240http://lattes.cnpq.br/5886968082690915http://lattes.cnpq.br/4741727720983700Universidade Federal de São Paulo (UNIFESP)Nascimento, Sergio Ricardo Rios [UNIFESP]2020-03-25T11:43:44Z2020-03-25T11:43:44Z2018-08-30info:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/publishedVersion46 f.application/pdfhttps://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=70248082018-0262.pdfhttps://repositorio.unifesp.br/handle/11600/52330porSão Pauloinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESP2024-08-02T14:13:35Zoai:repositorio.unifesp.br/:11600/52330Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestbiblioteca.csp@unifesp.bropendoar:34652024-08-02T14:13:35Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false
dc.title.none.fl_str_mv Estudo morfométrico e histológico da trabécula septomarginal em corações bovinos e suínos
Morphometric and histological study of the septomarginal trabecula of bovine and swine hearts.
title Estudo morfométrico e histológico da trabécula septomarginal em corações bovinos e suínos
spellingShingle Estudo morfométrico e histológico da trabécula septomarginal em corações bovinos e suínos
Nascimento, Sergio Ricardo Rios [UNIFESP]
Heart conduction system
Veterinary anatomy
Purkinje fibers, Histology
Sistema de condução cardíaco
Anatomia veterinária
Fibras de Purkinje, Histologia
title_short Estudo morfométrico e histológico da trabécula septomarginal em corações bovinos e suínos
title_full Estudo morfométrico e histológico da trabécula septomarginal em corações bovinos e suínos
title_fullStr Estudo morfométrico e histológico da trabécula septomarginal em corações bovinos e suínos
title_full_unstemmed Estudo morfométrico e histológico da trabécula septomarginal em corações bovinos e suínos
title_sort Estudo morfométrico e histológico da trabécula septomarginal em corações bovinos e suínos
author Nascimento, Sergio Ricardo Rios [UNIFESP]
author_facet Nascimento, Sergio Ricardo Rios [UNIFESP]
author_role author
dc.contributor.none.fl_str_mv Ruiz, Cristiane Regina
http://lattes.cnpq.br/5165811469866240
http://lattes.cnpq.br/5886968082690915
http://lattes.cnpq.br/4741727720983700
Universidade Federal de São Paulo (UNIFESP)
dc.contributor.author.fl_str_mv Nascimento, Sergio Ricardo Rios [UNIFESP]
dc.subject.por.fl_str_mv Heart conduction system
Veterinary anatomy
Purkinje fibers, Histology
Sistema de condução cardíaco
Anatomia veterinária
Fibras de Purkinje, Histologia
topic Heart conduction system
Veterinary anatomy
Purkinje fibers, Histology
Sistema de condução cardíaco
Anatomia veterinária
Fibras de Purkinje, Histologia
description Objective: analyze the anatomy and histology of the septomarginal trabecula of bovine and swine hearts, identifying possible macro and microscopic variations. Methods: septomarginal trabeculae from 34 bovine hearts and 12 swine hearts were analyzed for their macroscopic morphology and, after being fixed in Bouin's solution, processed, sectioned in microtome (5 μm) and stained, were analyzed histologically. Results: in all hearts evaluated, the septomarginal trabecula presented as a smooth tubular structure, of fibromuscular consistency, with variable length and diameter. The anatomical variations observed included trabeculae with more than one marginal fixation, of two to four branches, and unique septal fixation, besides several sizes in their caliber. Histologically, these structures were constituted by cardiac muscle fibers, connective tissue, vascular tissue and myofibril conduction, the Purkinje fibers. In the samples of bovine and swine septomarginal trabeculae, which presented a smaller diameter, connective tissue predominated, and cardiac muscle tissue was scarcer, whereas in the thicker samples, predominance was of cardiac striated muscle tissue. These findings were corroborated by the stereological analyzes. Conclusions: there are significant macro and microscopic differences between the septomarginal trabeculae as regards their diameter and constituent tissue and may lead to possible changes in cardiac physiology.
publishDate 2018
dc.date.none.fl_str_mv 2018-08-30
2020-03-25T11:43:44Z
2020-03-25T11:43:44Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=7024808
2018-0262.pdf
https://repositorio.unifesp.br/handle/11600/52330
url https://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=7024808
https://repositorio.unifesp.br/handle/11600/52330
identifier_str_mv 2018-0262.pdf
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 46 f.
application/pdf
dc.coverage.none.fl_str_mv São Paulo
dc.publisher.none.fl_str_mv Universidade Federal de São Paulo (UNIFESP)
publisher.none.fl_str_mv Universidade Federal de São Paulo (UNIFESP)
dc.source.none.fl_str_mv reponame:Repositório Institucional da UNIFESP
instname:Universidade Federal de São Paulo (UNIFESP)
instacron:UNIFESP
instname_str Universidade Federal de São Paulo (UNIFESP)
instacron_str UNIFESP
institution UNIFESP
reponame_str Repositório Institucional da UNIFESP
collection Repositório Institucional da UNIFESP
repository.name.fl_str_mv Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)
repository.mail.fl_str_mv biblioteca.csp@unifesp.br
_version_ 1814268462564900864

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