other studies covered in this review concern the oocyte and its hormonal environment both in vivo and in vitro , the effects of steroids and gonadotrophins on the steroidogenic potentials of follicle cells and also some endocrine and non-endocrine responses of thecal and granulosa cells after being separated and then recombined in vitro .
C0029045
oocyte
C0018120
follicle