3)Development and maturation of follicle sexual maturity, non-pregnant stage follicle oocyte follicular cell
3) Development and maturation of follicle ---sexual maturity, non-pregnant stage ---follicle = oocyte + follicular cell
① primordia| follicle -oocyte: primary oocyte /30um in d /large, vesicular nucleus /slight eosinophilic cytoplasm follicular cell: a layer of flattened cell
① primordial follicle ---oocyte: primary oocyte /30um in D /large, vesicular nucleus /slight eosinophilic cytoplasm ---follicular cell: a layer of flattened cell
before birth, oogonia come from yolk sac, enter ovarian/ cortex, developed into primary oocyte, then primary oocyte begin the first meiosis, but rest at prophase of division
* before birth, oogonia come from yolk sac, enter ovarian cortex, developed into primary oocyte, then primary oocyte begin the first meiosis, but rest at prophase of division
growing follicle (2 primary follicle: primordial follicle begin to grow oocyte LM: become large EM: rich in organelles follicular cell: become a layer of cuboidal or more layers r-zona pellucid /a layer of homogeneous structure- glycoprotein /eosinophilic in HE stain
*growing follicle: ② primary follicle: primordial follicle begin to grow ---oocyte: LM: become large EM: rich in organelles ---follicular cell: become a layer of cuboidal or more layers ---zona pellucide: /a layer of homogeneous structure-glycoprotein /eosinophilic in HE stain
那泡细 遜曬带 切级卵世绌胞 一刚泡细突起