| 大鼠各脑室室管膜和脉络丛超微结构观察 |
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| 引用本文： | 丁素银,李月云,薄爱华,张林西.大鼠各脑室室管膜和脉络丛超微结构观察[J].河北北方学院学报(医学版),1998(1). |
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| 作者姓名： | 丁素银 李月云 薄爱华 张林西 |
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| 作者单位： | 张家口医学院科协医学系，张家口医学院科协医学系 94级学生 075029，94级学生 075029，指导教师，指导教师 |
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| 摘 要： | 为了探讨各脑室壁室管膜细胞和脉络丛组织的超微结构特点,取成年大鼠侧脑室、Ⅲ、Ⅳ脑室和中脑水管上皮细胞及侧脑室脉络丛组织制成超薄切片,JEM-100CXⅡ透射电镜下观察。结果表明:(1)脑室不同部位室管膜上皮细胞的排列层次稍有区别,以其电子密度高低不同,可分为明细胞与暗细胞两种类型。细胞间有连接复合体,游离面有微绒毛和纤毛;线粒体较丰富;细胞基底部有长的胞突伸入神经细胞之间。(2)脉络丛:表面覆盖着单层立方柱状上皮,游离面有丰富的锤状微绒毛;脉络丛中轴为有孔毛细血管,血管周围间隙明显,本研究为探讨的脑脊液循环和障碍原因,提供了形态学基础。
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| 关 键 词： | 室管膜 脉络丛 上皮细胞 脑脊液 |
AN OBSERVRATION OF VLTRASTRVCTURE OF EPENDYMA AND CAOROID PLEXDS OF RAT |
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| Ding suyin et al.AN OBSERVRATION OF VLTRASTRVCTURE OF EPENDYMA AND CAOROID PLEXDS OF RAT[J].Journal of Hebei North University:Medical Edition,1998(1). |
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| Authors: | Ding suyin |
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| Institution: | Ding suyin et al |
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| Abstract: | In ordor to reveal the wltra structural characters of the ependyma cells and the choroid
plexus, the adult rats were used , The tissues of the lateral ventrides its choroid plexus , the III and IV ventriculo-gram and the epithelial cells of central fluid channel were processed into ultrathin sections .We used transmission electron microscope(TEM) oF SEM - 100CX II type to observe. The results Showed : (1) There were some differences of the cell structure among different ependymas of ventriculogram . According to the cells' electron density, they could be dimided into two groups: bright cells and dark cells . There were functional complex between the cells, microuilli and cilia on thd free face; On the basement part of the membrane stretched into the neurocyte and the mitochondria was rick . (2) Choroid plexus , there was simple caboidal colamnar epithelium on the surface, and the mierovilli was rich on the free face . The central anis of choroid plexus was fenestrated ccepillary, the perivascular space was obvious . Thisexperiment provided morphological material for the further study of cerebrospinal fluid circulation and the reasons of circulating barriar . |
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| Keywords: | Ultrastrudure of ependyma choroid ploxus ependyma cell cerebrospinal fluid circula- |
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