germinal epitheliumprimordialfolicles
follicular cellsprimary oocyte
follicular cells primary oocyte
(2) Growing follicleDPrimaryfollicle---primary oocyte:LM:become large greatly enlarged primary oocyte (50~80 um)EM:richinorganelles---follicular cell:becomealayerofcuboidalormorelayers,zonagranulosa---zona pellucida:/alayerofhomogeneousstructure-glycoprotein/eosinophilicinHEstain
(2) Growing follicle ①Primary follicle -primary oocyte: LM: become large greatly enlarged primary oocyte (50~80 um). EM: rich in organelles -follicular cell: become a layer of cuboidal or more layers, zona granulosa -zona pellucida: /a layer of homogeneous structure -glycoprotein /eosinophilic in HE stain
OvaryH&Efollicular cellsprimordialfollicleoocytezona pellucidaoocyte88primaryfolliclegranulosa cells
zona pellucida
力zona pellucidafollicular celloocyte
zona pellucida follicular cell oocyte