②Secondaryfolliclesmall fluid-filled spaces visible--primaryoocyte:continuous to develop and reach largest D(125-150um)---follicular cell: more layers--follicular cavity: space between follicular cells (6-12 layers)small space-large cavity, (filled with follicular fluid)Secondary(vesicular)follicleAntrumThecainternaThecaexternaGranulosacells
②Secondary follicle small fluid-filled spaces visible -primary oocyte: continuous to develop and reach largest D(125-150um) -follicular cell: more layers -follicular cavity: space between follicular cells (6-12 layers) small space→large cavity , (filled with follicular fluid)
---cumulus oophorus: follicular fluid increase to force theoocyte and some follicular cells move to one side to form ahillock-liked structure---corona radiate: follicular cell near oocyte arrangedradially---stratum granulosa: follicular cell which constitute thewall offollicle---theca folliculi: derived form surrounding stroma cellwhichproliferate and differentiatetheca interna: rich in cells( theca cell)-spindle-shaped,polyhedral-steroid-hormonecell'sfeature:estrogentheca externa: CT, fiber
-cumulus oophorus: follicular fluid increase to force the oocyte and some follicular cells move to one side to form a hillock-liked structure -corona radiate: follicular cell near oocyte arranged radially -stratum granulosa: follicular cell which constitute the wall of follicle -theca folliculi: derived form surrounding stroma cell which proliferate and differentiate theca interna: rich in cells( theca cell) -spindle-shaped, polyhedral -steroid-hormone cell’s feature: estrogen theca externa: CT, fiber
follicular thecastratum granulosacorona radiata.......一cumulus oophorus .........follicular cavity
follicular theca corona radiata cumulus oophorus follicular cavity stratum granulosa
cumulus oophorus八
cumulus oophorus