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人与犬膀胱肌内神经分布的比较研究

, PP. 137-140

Keywords: 膀胱,肌内神经,,

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Abstract:

目的比较人与犬膀胱肌内神经分布的特点及其意义。方法采用Sihler’s肌内神经染色、HE染色研究人与犬的完整膀胱,其中人膀胱15个,犬膀胱11个;7个固定24h用于HE染色,19个用10%的甲醛固定12周以上用于Sihler’s染色。结果膀胱染色后呈透明胶冻状,神经呈紫蓝色,在输尿管膀胱连接处以不同的形式进入膀胱;人膀胱神经较犬的细小,分支少,未见壁内神经节,犬膀胱壁内见较多神经节,并以其为纽带与神经纤维共同形成网状;左右两侧神经纤维在前后中线交叉甚少,人右侧神经支明显多于左侧,犬则相反,有神经纤维经过膀胱到输尿管下段。结论人与犬膀胱均有丰富的神经支配,神经在输尿管膀胱连接部附近进入膀胱壁,有经膀胱的神经分支到输尿管下段;肌内神经的结构与分布两者存在差异,肌内是否存在神经节与膀胱功能活动有关。

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