女性胚胎肛提肌及其运动终板分布的研究

发布时间：2018-06-19 00:37

本文选题：女性胚胎 + 运动终板　；参考：《安徽医科大学学报》2014年10期

【摘要】：目的探讨不同孕周女性胚胎肛提肌内运动终板的分布状态。方法将孕20~24周女性胚胎作为A组,孕24~28周女性胚胎作为B组,用Karnovsky-Roots铁氰化铜染色法研究两组胚胎的的平均体重、肛提肌上运动终板的形态、分布特点及运动终板数量的变化。结果孕20~28周女性胚胎其运动终板形态及分布特点基本一致且为椭圆形,均呈曲线分布于肛提肌纤维中外1/3处,A组胎儿体重及运动终板的数量均少于B组。结论孕20~28周女性胚胎肛提肌上均可见运动终板,形态无明显差别,且沿肌纤维呈曲线分布,肛提肌上运动终板数量随孕周的增加而增加。
[Abstract]:Objective to study the distribution of motor endplate in levator ani muscle of different gestational weeks in female embryos. Methods the female embryos of 20 and 24 weeks were used as group A and the female embryos of 24 weeks gestation as group B. the average body weight, the shape, distribution and the number of motor endplates in levator ani muscle were studied by Karnovsky-Roots iron cyanide copper staining method. Results the shape and distribution of motor endplate of female embryos at 20 ~ 28 weeks of gestation were basically the same and oval shape. The fetal body weight and the number of motor endplates in group A were less than those in group B at 1 / 3 of levator ani muscle fibers. Conclusion the motor end plate was found on the levator sphincter muscle of the female embryo at 20 ~ 28 weeks of gestation, and there was no significant difference in morphology, and the number of the motor end plate of the levator ani muscle was increased with the increase of gestational week, and the distribution of the motor end plate along the muscle fiber was curvilinear.
【作者单位】：安徽医科大学第二附属医院妇产科;
【基金】：国家自然科学基金(编号:81100412) 安徽省高等学校省级优秀青年人才基金项目(编号:2011SQRL088)
【分类号】：R711.3

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