Macroscopic aspects of Saimiri sciureus dura mater

Pesquisa Veterinária Brasileira

José Fernando Marques Barcellos²  Érika Branco¹  Emerson T Fioretto¹  Aline A Imbeloni¹  José A.p.c Muniz¹  Ana R Lima¹ 

[1] ,Universidade Federal do Amazonas Instituto de Ciências Biológicas Departamento de MorfologiaManaus AM ,Brazil

关键词: Saimiri sciureus;    brain;    dura mater;    sinus venosus;    sinus parietalis;    Saimiri sciureu;    encéfalo;    dura mater;    seio venoso;    seio parietal;   

DOI  :  10.1590/S0100-736X2011001300002

来源: SciELO

【 摘 要 】

Saimiri sciureus is a small New World primate (NHP) commonly called macaco-de-cheiro that inhabits the tropical forests of the Amazon basin. Anatomical features are not well studied in most primates, and the encephalic morphology and related structures are still quite unknown. Comparative anatomy of the meninges in South American primates is still scarce. Dura mater, arachnoid and pia mater are a group of stratified layers that surrounds and promotes protection to the medulla spinalis. This study aimed to shed light on the anatomy of dura mater in Samiri sciureus in order to contribute to the neuroscience in primates. We investigated three young females and two males of S. sciureus. Specimens were fixed through perfusion with a 10% formaldehyde aqueous solution. In S. sciureus encephalus few gyrus and circunvolutions, and a very delicate system consisting of eight sinus venosus was found between the dura mater layers. Based on our findings, we can conclude that the Saimiri sciureus dura mater is quite similar to other mammals, however we detected a new sinus venosus formation at the level of parietal bone, named sinus parietalis, what appears to be its first description.

【 授权许可】

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