雌、孕激素在生殖周期中对输卵管形态结构和功能活动具有重要调节作用 ,二者缺一不可。本文应用孕激素受体阻断剂米非司酮 (RU486 )作用于大鼠 ,进行光镜水平研究 ,了解孕激素作用被抑制情况下 ,雌激素对大鼠输卵管形态结构的影响。本实验采用成年雌性 SD大鼠 2 5只 ,根据阴道 Estrogen and progesterone in the reproductive cycle of tubal morphological structure and functional activity has an important regulatory role, both indispensable. In this paper, RU486, a progesterone receptor blocker, was used in rats to study the effects of estrogen on the morphology of fallopian tube in rats under light microscope. In this study, 25 adult female Sprague-Dawley rats were used, according to the vagina