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实验用辣根过氧化物酶(HRP)导入大鼠一侧下边缘皮质逆行示踪技术研究其皮质传入投射.结果如下:HRP逆行标记神经元在注射对侧主要见于额前皮质的外侧眶区,腹侧眶区、扣带回3区及下边缘皮质;在注射同侧主要见于岛叶无颗粒皮质后部.梨状区的内嗅皮质.海马结构的下托及海马CA1区.此外还有杏仁海马区、杏仁梨状皮质移行区等;在额、顶、枕、颢诸叶新皮质中很少见到HRP标记细胞.文内着重分析了下托及海马CA1区至下边缘皮质的传入投射,从而证实下边缘皮质的纤维投射参于“内侧边缘环路”即“Papez环路”的构成.下边缘皮质与边缘叶间有较多的纤维联系,而与新皮质联系极少.
The experiments were conducted with horseradish peroxidase (HRP) introduced into the lower cortical retrograde tracing technique in rats to study the cortical afferent projection.The results are as follows: HRP retrogradely labeled neurons were mainly found in the lateral orbit of the prefrontal cortex Region, ventral orbital zone, cingulate gyrus in zone 3 and inferior border cortex; ipsilateral injection is mainly found in the posterior cortex of the insular cortex in the posterior cortex of the entorhinal cortex hippocampal formation of the hypothalamus and hippocampal CA1 area. There are almond hippocampus, apricot pear-shaped cortical transition zone, etc .; in the amount, top, pillow, leaf cortex new HRC labeled cells rarely seen.This article focuses on analysis of the hypothalamus and hippocampus CA1 to the lower edge of the cortex In order to confirm the fiber projection of the lower edge of the cortex in the “inner edge loop” or “Papez loop.” The lower edge of the cortex and the edge of the leaf more fibrous connection, and the neocortical contact pole less.