Contribution to the anatomic study of the dura-mater of the Bradypus torquatus (Linnaeus, 1758) e Bradypus variegatus (Schinz, 1825)
Keywords:Bradypus, Maned sloth, Brain, Meninge, Dura-mater sinus
AbstractNeurosciences research have contribution to elucidate the history of the animal on the earth, nevertheless many sylvan animals, in South America yet won't be studied. The Sloth's, in risk of extinction, because your high specificity and alimentary specialization can give us information about evolutive animal history. We use dead animals by natural process, freeze, fixed and injected by natural latex in Matinha´s reserve, Itabuna/Ilhéus, ceded for projects in association between the reserve, São Paulo University and other institutions. The dissections were realized by magnified glass succors, documented, descript and analyzed by the references. We don't have many references about the theme thus were utilized descriptions and systematizations in humans and other mammals as the base for discussions. In the dura-mater was found a similar structure in other mammals, with falx´s brain and cerebelar tent , over there venous sinus. This sinus show interests alterations in your formations, all adequate to your anatomic characteristics of your brain, among these a orbiculo-frontal sinus around the base of olfactory bulbs, a sinus para-sagital cerebelar in a place of a cerebelar vein like description for many authors, and a connection between transverse sinus and inter-transverse sinus. Finally a peculiarity in this system is a transposition of the sigmoid sinus in a caudo-rostral orientation draining the blood support of the rostral region of the brain, specially the olfactory set.
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