伍德乐夫说，这项发现能使研究员们了解营养细胞（颗粒细胞），也就是支撑和环绕逐渐成熟的卵的细胞，如何与卵细胞联系。
The discovery, Woodruff said, will enable researchers to understand how nurse cells (granulosa cells), the cells that support and surround the maturing egg, communicate with the egg.
卵细胞成熟时，有卵外膜，结构复杂。
The mature ootid has the outer membrane with complex structure.
成熟胚囊包含卵器(由两个助细胞、一个卵细胞组成)，中央细胞及三个反足细胞。
A mature embryo sac is composed of egg apparatuses (two synergids and one egg cell), central cells and three antipodal cells.
结论通过卵细胞第一极体形态可预测受精卵及卵裂期胚胎质量。
Conclusion Zygotes and embryo quality can be predicted by morphology of the first polar body.
前言：目的：探讨异丙酚静脉麻醉取卵术对卵细胞质量、受精率、卵裂率、优质胚胎形成率、种植率及妊娠率的影响。
Objective: To study effect of propofol intravenous anesthesia used in transvaginal oocyte retrieval on outcomes of in vitro fertilization and embryo transplantation.
前言：目的：探讨异丙酚静脉麻醉取卵术对卵细胞质量、受精率、卵裂率、优质胚胎形成率、种植率及妊娠率的影响。
Objective: To study effect of propofol intravenous anesthesia used in transvaginal oocyte retrieval on outcomes of in vitro fertilization and embryo transplantation.
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