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在22只体重140g左右的SD大鼠,用HRP逆行和顺行追踪方法(TMB-ST法成色),研究了中脑中央灰质(CG)与前脑结构的联系。按照泳注中心位置,将实验材料分作背侧区(CGD)、内侧区(CGM)和外侧区(CGL)三组。三组逆行标记细胞分布没有明显差别。在大脑皮质(以扣带前、压后和额叶皮质为著)、终纹床核、视前区、广泛的下丘脑结构(以下丘脑前区、背侧区、灰结节区、外侧区以及下丘脑腹内侧核、背侧乳头体前核为著,下丘脑室旁核亦见标记细胞)以及未定带、缰外侧核等结构察见标记细胞,均以同侧为主。值得注意的CGL组在终板血管器观察到相当丰富的标记细胞,CGM组在邻近弓状核的室管膜内见相当典型的标记细胞。顺行标记纤维主要循同侧背侧纵束、室周纤维系统和内侧前脑束上行,部分向背颅侧或外颅侧方向穿中脑顶盖或网状结构行进。CGD组达束旁核、丘脑室旁核、外侧和内侧缰核、下丘脑脑后区、未定带、乳头体上核、背侧下丘脑区、下丘脑前区、丘脑后核和顶盖前区。CGM和CGL组延伸较远,除至以上部位外,还可抵达未定带下核、Forel区、背侧乳头体前核、下丘脑室旁核、内侧和外侧视前区、斜角带、终纹床核丘脑中线区和内髓板区等部位。
In 22 SD rats weighing 140 g, the relationship between central mesencephalic mass (CG) and forebrain structure was studied by retrograde and retrograde HRP (TMB-ST method). The experimental materials were divided into three groups: CGD, CGM and CGL. Three sets of retrograde labeling cells did not differ significantly. In the cerebral cortex (pre-cingulate, post-pressor and frontal cortex is located), the striation nucleus, preoptic area, a wide range of hypothalamic structures (the following thalamic area, dorsal area, ash nodal area, lateral area As well as hypothalamic ventromedial nucleus, dorsal papillary body nucleus is located, paraventricular hypothalamic paraventricular nucleus also marked cells), as well as undetermined zone, the outer nucleus of the nucleus and other structures were observed marked cells, are mainly in the same side. The notable CGL group showed considerable abundance of labeled cells in the endplate vasculature and the CGM group showed quite typical labeled cells in the ependymal membrane adjacent to the arcuate nucleus. The antegrade-labeled fibers mainly follow the posterior longitudinal bundle, the periventricular fiber system and the medial forebrain bundle upward, partially through the medial cerebral cap or reticular formation toward the dorsal or lateral cranial side. The paraventricular nucleus, the paraventricular nucleus of the thalamus, the lateral and medial habenular nucleus, the posterior hypothalamic area, the undetermined band, the supramalaginal nucleus, the dorsal hypothalamic area, the hypothalamic anterior area, the posterior thalamic nucleus, Area. The CGM and CGL groups extend further, reaching the undecorated nucleus, the Forel region, the dorsal papillary nucleus, the paraventricular nucleus of the hypothalamus, the medial and lateral preoptic areas, the bevel, and the terminal to the above sites Lined nucleus thalamic nucleus and medullary area and other parts.