摘要
用50例人胚卵巢标本观察了卵巢的组织发生过程。结果显示,6周前性腺呈未分化状,7周后可辨认卵巢。26周前表面上皮由多层细胞构成,内有散在的卵原细胞。23周后有上皮内褶形成。11～13周出现皮质索,14～16周皮质索断裂为细胞团。初级卵母细胞减数分裂相初见于14周,原始卵泡初见于17～18周。35周后于皮质深层可见含多层颗粒细胞的生长卵泡。30周后具备明显的白膜。
The histogenesis of human embryonic ovary was studied with
5 embryonic gonads and 45 fetal ovaries.The result are as follows:before
6 weeks of gestation,the gonads are undifferentiated and the ovaries can be
recognized at 7 weeks.Before 26 weeks the surface epithelum of the ovaries
contains germ cells and is stratified.Infoldings of the surface epithelium can
be found after 23 weeks.The cortical cords appear at 11-13 weeks and are
split into isolated cell clusters at 14-16 weeks.The meiosis figures of the
primary oocytes are first found at 14 weeks and the formation of primordial
follicles begins at 17-18 weeks.After 35 weeks large growing follicles con-
taining many layers of granulosa cells can be found in the deep region of
the cortex.The tunica albuginea is clearly visible after 30 weeks.
出处
《山东医科大学学报》
1991年第2期106-109,共4页
Acta Academiae Medicinae Shandong
