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人胚胎主动脉内弹性膜上窗孔三维结构的扫描电镜观察 被引量:1

SCANNING ELECTRON MICROSCOPIC OBSERVATION OF THREE DIMENSIONAL STRUCTURE ON FENESTRAE OF HUMAN EMBRYO AORTIC INTERNAL ELASTIC MEMBRANE
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摘要 取人工流产胚胎主动脉弓标本15例,按常规扫描电镜方法制作标本。标本按胎龄分3组,共摄片27张。观察标本上内皮脱落处的内弹性膜,用立体学方法测量照片上的窗孔数和面积,计算出单位面积上窗孔的平均面积。结果表明:第2个月胚胎内弹性膜已出现很多小孔,第3个月小孔融合成窗孔,随胎龄增长,窗孔数增多,面积增大。单位面积上窗孔的平均面积(x±s):2~3个月时为0.2024±0.0636;4~5个月时为0.2781±0.1194;6~9个月时为0.3929±0.0688。本研究提示,胚胎期间内皮下层的形成与内弹性膜窗孔面积的大小有直接关系。 Fifteen samples of human fetus aortic arch from induced abortion were prepared with routine scanning electron microscopic procedures. The samples were divided into 3 groups by fetus age and altogether 27 pictures were taken of them. By observing the internal elastic membrane on the samples where endothelial cells fell off, measuring the number of fenestrae and relevant area on the pictures with stereological method, and counting fenestra area per unit area. The result is that many small pores appeared on the internal elastic membrane of 2 month old fetus, merged into fenestrae at the 3rd month and the number and area of fenestra increased with the fetus age. Fenestra area per unit area (±s) is 0.2024±0.0636 in 1st group, 0.2781±0.1149 in 2nd group and 0.3929±0.0688 in 3rd group. The result points out the direct relation between intimal thickening and fenestra area of internal elastic membrane.
出处 《解剖学报》 CAS CSCD 北大核心 1997年第3期301-303,共3页 Acta Anatomica Sinica
关键词 主动脉 内弹性膜 窗孔 立体学 扫描电镜 人胚胎 Internal elastic membrane Fenestra Scanning electron microscopy Stereology Human embryo aorta
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参考文献7

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同被引文献4

  • 1吕卫.内耳超微结构专题讲座[J].国外医学:耳鼻咽喉科学分册,1988,12(5):3-3.
  • 2严悦卿 李秀芝 等.衡阳地区第6-11周人胚胎手、足长度测量[J].解剖学杂志,1998,11(3):209-209.
  • 3李庄仲.胚胎外形测量数据的统计分析[J].解剖学杂志,1991,14(3):273-277.
  • 4苏鸿禧,刘东风.盖膜及其生理功能[J].国外医学(耳鼻咽喉科学分册),1990,14(4):213-216. 被引量:1

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