摘要
目的研究正常人胚早期绒毛膜的发育过程，探讨绒毛的结构特点及其与功能的关系。方法用正方测试格半定量观察９２例正常人胚早期（６～１１周）绒毛膜的组织结构，测试绒毛上皮厚度及间质内间充质细胞、毛细血管的相对含量。结果绒毛膜滋养细胞包括三种：细胞滋养细胞、合体滋养细胞和中间型滋养细胞。滋养细胞具有正常的高度增殖及侵蚀能力。绒毛上皮厚度随胚胎周龄的增加而增加，于第１１周达峰值。绒毛间质内间充质细胞和毛细血管的相对含量随周龄的增加而增加，相邻两个周龄组之间的差异显著（Ｐ＜００５）。结论在胚胎早期，绒毛发育较快，间质生长活跃。滋养细胞高度增殖并侵蚀子宫蜕膜，但有一定限度。
Abstract Objective To study the process of development of normal human chorion in early pregnancy,and the relationship between the structure of villi and their functions . Methods Ninety-two cases of normal villi at a fetal age of 6-11 weeks were examined with light microscope.The thickness of trophoblast was measured and the relative amounts of mesenchymal cells and capillary were counted. Results There were three types of trophoblast in the chorion.The trophoblast has normal abilities of high proliferarien and invasion .The thickness of tropnoblast increased wit increasing gestation week age,peaked at 11th week. In the stroma of
出处
《济宁医学院学报》
1999年第2期13-16,共4页
Journal of Jining Medical University
