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应用ＮＡＤＰＨ－ｄ组织化学方法研究脑室系统的一氧化氮合酶（ＮＯＳ）阳性触液神经元。结果发现，ＮＯＳ阳性触液神经元主要见于第三脑室。根据胞体所在位置，第三脑室ＮＯＳ阳性触液神经元可有３种形式：（１）室管膜内触液神经元；（２）室管膜下或远位触液神经元，其突起伸入第三脑室室管膜上皮之间，这些ＮＯＳ阳性触液神经元有的来自室旁核或室周核；（３）室管膜上触液神经元，其胞体位于室管膜表面。本文首次报道了第三脑室ＮＯＳ阳性触液神经元，这种触液神经元的分布类型基本和其他递质触液神经元相类同，并讨论了ＮＯＳ阳性触液神经元的功能。
Nitric oxide synthase (NOS) positive synaptic neurons in the ventricular system were studied by NADPH-d histochemistry. The results showed that NOS positive palmar neurons mainly seen in the third ventricle. According to the location of the cell body, the third ventricle NOS positive palmar neurons can have three forms: (1) ependymal palmplastic neurons; (2) subependymal or distal fluid neurons, the protuberance Into the third ventricle between the ependymal epithelial cells, some of these NOS-positive palmar neurons from the paraventricular nucleus or ventricular nucleus; (3) ependymal neurons, the cell body located in the ependymal surface. This paper reports for the first time the third ventricle NOS positive synaptic neurons, the distribution of this fluid neurons of basic and other neurotransmitters palmitotic similar, and discusses the function of NOS-positive synaptic neurons.