生精上皮由生精细胞和支持细胞组成。
各级生 精细胞根据它们的发育阶段有规律地排列成多层，这一结构称为生精上皮（spermatogenic epithelium）。支持细胞占成年生精上皮的25％。
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提示长期接触汞蒸气可能对男工生精上皮的支持细胞及精囊功能产生不良影响。
It suggests chronic exposure to mercury vapor may cause adverse effects on Sertoli's cells of spermatogenic epithelium and seminal vesicle function.
以18天鸡胚睾丸为实验材料，经胶原酶和胰蛋白酶两步酶消化法得到生精上皮细胞悬液。
Testes from 18-day-old embryonic chickens were used to isolate seminiferous epithelial cells by sequential two-step enzyme digestion with collagenase and trypsin.
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