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Frequência da artéria calosomarginal e proposição de hipótese quanto ao seu significado filogenético

Frequency of the callosomarginal artery and hypothesis with regard to phyllogenetic signification

Resumos

A frequência da artéria calosomarginal foi estudada em 52 cérebros humanos, adultos e de ambos os sexos. Neste estudo foram considerados a origem e os padrões de ramificação da artéria calosomarginal. Com bases no trabalho de Watts23 em primatas subhumanos, foi proposta uma hipótese do significado evolutivo da artéria calosomarginal.


The neuroanatomic study of the callosomarginal artery was performed bv simple and careful dissection in 52 human brains. The observation was made with stereoscopic magnifying glass. The results were the following: the callosomarginal artery was present in 36.6% (19/52) of the cases on the right hemisphere and 29%(15/52) on the left hemisphere; unilateral absence on those hemispheres was of 17.3%(9/52) and 25.0%(13/52), respectively; bilateral absence was of 46.1% (24/52). The register of the presence or absence of the artery was based on proposed criteria by Moscow and col.14. With regard to phyllogenetic signification one has considered the hypothesis that the development of the callosomarginal artery possibly was closely related with a structural and physiological expansion of the neocortex in man.


Frequência da artéria calosomarginal e proposição de hipótese quanto ao seu significado filogenético

Frequency of the callosomarginal artery and hypothesis with regard to phyllogenetic signification

Vicente Paulo Jorge Lemos

Professor Adjunto. Departamento de Morfologia do Centro de Ciências da Saúde da Universidade Federal do Ceará (Fortaleza-CE)

RESUMO

A frequência da artéria calosomarginal foi estudada em 52 cérebros humanos, adultos e de ambos os sexos. Neste estudo foram considerados a origem e os padrões de ramificação da artéria calosomarginal. Com bases no trabalho de Watts23 em primatas subhumanos, foi proposta uma hipótese do significado evolutivo da artéria calosomarginal.

SUMMARY

The neuroanatomic study of the callosomarginal artery was performed bv simple and careful dissection in 52 human brains. The observation was made with stereoscopic magnifying glass. The results were the following: the callosomarginal artery was present in 36.6% (19/52) of the cases on the right hemisphere and 29%(15/52) on the left hemisphere; unilateral absence on those hemispheres was of 17.3%(9/52) and 25.0%(13/52), respectively; bilateral absence was of 46.1% (24/52). The register of the presence or absence of the artery was based on proposed criteria by Moscow and col.14. With regard to phyllogenetic signification one has considered the hypothesis that the development of the callosomarginal artery possibly was closely related with a structural and physiological expansion of the neocortex in man.

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Departamento de Morfologia do Centro de Ciências da Saúde da Universidade Federal do Ceará - Caixa Postal 688 - 60.000, Fortaleza, CE - Brasil.

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Datas de Publicação

  • Publicação nesta coleção
    16 Ago 2012
  • Data do Fascículo
    Dez 1984
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