胃的交感节前神经元(HRP示踪法)

<正> 胃运动的付交感神经纤维一般认为是从迷走神经运动背核发出的。在HRP示踪法出现以前,不少学者曾对这一问题有很多争论,有人认为迷走神经内脏运动节前纤维起始于迷走结状节;有人认为迷走神经运动背核不参与对内脏平滑肌的支配。在HRP示踪法应用于神经解剖的研究以后,很多学者对一课题进行了重新研究,多数学者赞同迷走神经运动背核是胃付交感内

THE PARASYMPATHETIC PREGANGLIA NEURONS OF STOMACH (HRP Method)

The origins of the parasympathetic preganglia fibers of stomach in ra- ts were traced with HRP method in this study. After HRP were injected into the wall of the stomach of rats, the labeled cells were found in the dorsal motor nuclni of vagas, intermediate zone. ambigous nuclei of medulla and in pars paraependytnalis, pars nuclei intercalatus, retroambigous nuc- lei, pars funicularis lateralis of the supra-cervical cord. This result shows those nuclei possess a direct nervous connection with stomach. The relati- on of the labelled cells between the medulla and the supra-cervical cord a- nd the reason of the change of their distributive shape were briefly discu- ssed in this paper.