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取１６～２８周２４例布依族人胎副睾及输精管，ＨＥ、ＰＡＳ染色。示１６周副睾上皮呈假复层柱状，胞质含较多粗大ＰＡＳ阳性颗位，游离面有纤毛，上皮基膜呈ＰＡＳ阳性反应。随着胎龄增加，管腔增大，上皮变高。２８周副睾管腔平整，上皮外有环行平滑肌。睾丸输出管呈明显不规则形。１６周时输精管上皮呈单层柱状，肌层不明显，１９周上皮已呈假复层柱状，未见纤毛，随着胎龄增加纤毛出现，环行肌层次增加后纵行肌出现，上皮基膜、纤毛呈ＰＡＳ阳性反应；为研究人胎生长发育，提供形态学基础。
Take 16 to 28 weeks in 24 Buyi tribe and vas deferens, HE, PAS staining. 16 weeks after the epididymal epithelium showed pseudostratified columnar column, the cytoplasm contains more coarse PAS-positive particles, free surface cilia, epithelial basement membrane was PAS positive reaction. As gestational age increases, the lumen increases and the epithelium becomes taller. 28 weeks of epididymal placental smooth, smooth outer ring of the ring. Testicular output tube was obviously irregular shape. At 16 weeks, the seminiferous epithelium showed a monolayer columnar structure, the muscular layer was not obvious. The epithelium had pseudostratified columnar shape at 19 weeks, no cilia appeared, and the cilia appeared with increasing gestational age. , Cilia positive PAS response; to study the growth and development of human fetus, to provide the morphological basis.