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大白鼠心脏交感和副交感神经分布及其相互关系

SYMPATHETIC AND PARASYMPATHETIC INNERVATION OF RAT HEART AND THEIR RELATION
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摘要 本文以儿茶酚胺荧光和乙酰胆碱酯酶组织化学方法研究了52只成年雄性大白鼠心脏交感肾上腺素能和副交感胆碱能神经的分布。并用这两种方法在同一切片上做了连续显示,观察了心脏各个部位交感和副交感神经的相互关系。在心房、心室、心内膜、心瓣膜、心外膜、房室结和冠状动脉等部位都观察到肾上腺素能膨体末梢和胆碱能神经末梢有双重神经分布;在双重神经分布的各个部位,以同一切片连续显示的照片相比较,可以看到两种神经末梢密度、形态,分布位置大部分是一致的,这是由于在光学显微镜下二者难于识别出其距离来,因而表现出一致的形态。这种形态学关系,可为交感和副交感神经在对心脏各个部位活动的同时,产生相互作用的生理和药理学实验给以有力的证据。在心神经节副交感节后胆碱能神经元邻近有小强荧光细胞,用同一心神经节切片连续显示方法观察到二者密切接触的关系。可提供副交感神经节细胞受含有儿茶酚胺的小强荧光细胞这种中间神经元影响的形态学依据。 Fifty two adult male rats were selected for the investigation the adrenergic and cholinergic innervation of rat heart by means of histochemical demonstration of catecholamine fluorescence and acetylcholinesterase(ACHE).Consecutive method was employed on the same section to demonstration the relation between the distribution of the sympathetic and parasympathetic nerves in various parts of rat heart,e.g.atrium,ventricular myocardium,valves,epicardium,endocardium,atrioventricular node and coronary arteries.Adrenergic and cholinergic terminals innervated all parts dually.By comparing the photographs demonstrating the fluorescence CA and AChE on the same section treated by the consecutive method,we found that the location,the density and morphology of both types of nerve terminals were more like.In other words,under light microscopy the localization of both terminals can hardly be distinguished from each other.Such kind of morphological relation may strongly support the results of interaction between sympathetic and parasympathetic nervous systems in physiological and pharmacological experiments of heart.In the cardiac ganglia there are some small intense fluorescence ceils(SIF-cells)lying besides the postganglionic cholinergic cells of the parasympathetic nervous system.Both kinds of cells were shown in close contact with each other in the same section with consecutive method.This morphological relation provided an evidence that catecholamine containing SIF-cells may control and regulate the neurotransmission of parasympathetic cholinergic neurons.
作者 文琛 金鸿华 张振丽 刘金兰 Wen Shen;Jin Honghua;Zhang Zhenli;Liu Jianlan(Institute of Acupuncture,Academy of Traditional Chinese Medicine)
出处 《解剖学报》 CAS 1982年第4期423-429,453,460,共9页 Acta Anatomica Sinica
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