Ferrari C C, Aldana Marcos H J, Carmanchahi P D, Benítez I, Affanni J M
Instituto de Neurociencia (INEUCI-CONICET), Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pab. II, Buenos Aires, Argentina.
Biocell. 1998 Aug;22(2):123-40.
The most salient neuroanatomical features of the brain of the seven banded armadillo Dasypus hybridus are described. The microscopic characteristics were studied by serial transverse and sagittal paraffin sections, stained with Nissl and Klüver-Barrera technique. This analysis comprises the telencephalon, diencephalon and mesencephalon. The most outstanding features of this brain are: 1) Great development of rhinencephalic structures (olfactory bulbs, olfactory tubercles, anterior commissure and pyriform cortex). 2) The relative size of the induseum griseum strongly suggests that this animal would be useful for a variety of studies on this structure. 3) The high position of the rhinal fissure on the lateral hemispheric wall determines the smallness of neocortex. Therefore, this armadillo is also useful for decortication studies. 4) Absence of a distinct pineal organ. 5) Conspicuous subfornical and subcommissural organs. 6) Absence of a distinct intermediate lobe in the hypophysis.
描述了七带犰狳(Dasypus hybridus)大脑最显著的神经解剖学特征。通过连续的横向和矢状石蜡切片,采用尼氏染色和克吕弗-巴雷拉技术研究其微观特征。该分析涵盖端脑、间脑和中脑。这种大脑最突出的特征有:1)嗅脑结构(嗅球、嗅结节、前连合和梨状皮质)高度发达。2)灰被的相对大小强烈表明这种动物对于关于该结构的各种研究将是有用的。3)嗅裂在外侧半球壁上的高位决定了新皮质较小。因此,这种犰狳对于去皮质研究也很有用。4)没有明显的松果体。5)明显的穹窿下器和连合下器。6)垂体中没有明显的中间叶。