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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/69918
Título: 
Características ultraestruturais do segmento abdominal da aorta de rato albino
Título alternativo: 
Mural features of the abdominal aortic segment of albino rat
Autor(es): 
Instituição: 
  • Universidade Estadual de Maringá (UEM)
  • Universidade do Oeste do Paraná
  • Universidade Estadual Paulista (UNESP)
  • Centro Universitário de Rio Preto
  • Universidade de Marília (UNIMAR)
ISSN: 
1679-9283
Resumo: 
The objective of the present research was to investigate the ultrastructural peculiarities of the aortic wall of the rat. Seven young adult rats were used, from which fragments of the infrarenal abdominal aorta were collected. After collection, the vascular segments were fixed and sent for analysis by scanning electron microscope. The elastic lamellae appear interposed with smooth muscular fibers; this pattern was verified mainly at the medial layer structure. Among the mural elements a well defined interrelationship was established through connective lamellae of the arterial wall. The collagen lamellae mainly provided anchoring among the elastic and smooth muscular constituents. The intimal layer showed special ultrastructural features, such as a non-continuous inner elastic lamina presented in certain sites of the vascular wall, followed by endothelial pores. This mural pattern of the abdominal aorta provided support to vascular functions such as shrinkage among the laminar composition of the arterial layers, also acting in mechanical properties of the vascular wall, such as viscoelasticity and contractility - essential actions to blood vessel hemodynamics.
Data de publicação: 
1-Out-2007
Citação: 
Acta Scientiarum - Biological Sciences, v. 29, n. 4, p. 343-348, 2007.
Duração: 
343-348
Palavras-chaves: 
  • Abdominal aorta
  • Albino rat
  • Ultrastructure
  • collagen
  • abdominal aorta
  • animal experiment
  • animal model
  • animal tissue
  • aorta wall
  • artery constriction
  • artery intima
  • cell ultrastructure
  • controlled study
  • elasticity
  • fibroelastoma
  • hemodynamics
  • nonhuman
  • rat
  • scanning electron microscope
  • smooth muscle
  • smooth muscle contractility
  • tissue distribution
  • viscoelasticity
  • Rattus
Fonte: 
http://dx.doi.org/10.4025/actascibiolsci.v29i4.825
Endereço permanente: 
Direitos de acesso: 
Acesso aberto
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/69918
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