人胎腹膜壁层间皮细胞的超微结构  

ULTRASTRUCTURE OF THE MESOTHELIAL CELLS OF PARIETAL PERITONEUM IN HUMAN FETUS

作　　者：李继承[1] 俞寿民 

机构地区：[1]浙江医科大学组织学胚胎学教研室,杭州310006 [2]浙江医科大学解剖学教研室,杭州310006

出　　处：《解剖学报》1991年第3期318-321,共4页Acta Anatomica Sinica

基　　金：国家自然科学青年基金

摘　　要：本文应用透射电镜和冷冻复型技术,对15例人胎腹膜壁层间皮细胞作了观察。膈腹膜间皮细胞有大量的小泡,小泡常开口在细胞游离面、基底面、细胞间隙和腹膜孔。小泡也可融合成大泡,开口在细胞基底面和游离面,在游离面上形成分泌颗粒。有时在微绒毛内也包含有小泡,并有小泡开口在微绒毛上。盆壁腹膜间皮细胞有丰富的内质网和高尔基复合体,但小泡缺如。结果表明,人胎腹膜间皮细胞可有两种类型,即小泡型间皮细胞和内质网型间皮细胞,前者位于膈腹膜,后者位于盆壁腹膜。小泡型间皮细胞参与腹膜腔内物质的转运。内质网型间皮细胞含大量的内质网和高尔基复合体,这反映细胞具有高度的合成功能,可能与腹膜液的产生有关。By transmission electron microscopy and freeze etching technique 15 human fetuses were utilized to study the ultrastructure of the mesothelial cells on the parietal peritoneum. The mesothelial cells of the diaphragmatic peritoneum contained numerous vesicles which were frequently communicated with the free surface, the basement membrane, intercellular space and the peritoneal stomata. Some of the vesicles seemed to fuse each other and form vacuoles. Vacuoles also occurred close to, or communicated with the basement membrane and cell free surface. Sometimes they appeared as secretory particles. The microvilli contained vesicles opened to the free surface. The mesothelial cells on the pelvic wall displayed abundant endoplasmic reticulum and Golgi apparatus, but scanty vesicles. So, the mesothelial cells on parietal peritoneum of human fetuses might be classified into two types, i. e. the vesiclecontaining cells on the diaphragmatic peritoneum and the ER-containing cells on the peritoneum of the pelvic wall. The vesicle-containing cells seemed to uptake material from the peritoneal cavity. Abundant endoplasmic reticulum and Golgi apparatus reflected a high synthetic activity, hence the ER-containing cells might be possibly related to the production of peritoneal fluid.

关 键 词：间皮细胞 腹膜 胚胎 超微结构 

分 类 号：R322.492[医药卫生—人体解剖和组织胚胎学]