Morfologia dos vasos da base do encéfalo do quati (Nasua nasua)

Abstract

The morphology of the brain of coati, Nasua nasua, was studied, to compare the findings with other species described. The brains of five coatis were used, proceeding from the Scientific Breeding School (Cecrimpas), Unifeob. The animals were sacrificed in accordance with the legislation (Cobea). With a needle, the common carotid artery and the external jugular vein was cannulated to cranial direction, injected latex solution stained with colored red barium respectively. Afterwards the animals were fixed in 10% formaldehyde solution. Brain has its dependent nutrition of four arteries, the internal carotid arteries and the right and left vertebral arteries. These vessels had composed the basal and carotid circuits that anastomose through the cerebral arteries volumes. They run in the base of the brain under piamater meninges.