Theca CellsGranulosa CellsOvarian FollicleAndrostenedioneOvaryFollicular AtresiaSteroid 17-alpha-HydroxylaseProgesteroneLuteinizationCholesterol Side-Chain Cleavage EnzymeLuteinizing HormoneOvulationFollicle Stimulating HormoneThecomaChorionic GonadotropinFollicular FluidEstradiolFollicular PhaseCattleCorpus LuteumAromataseGonadotropins, EquineGrowth Differentiation Factor 9SteroidsGonadotropinsLuteal CellsRNA, MessengerReceptors, LHPolycystic Ovary SyndromeCells, CulturedReceptors, GonadotropinAndrogensInhibinsImmunohistochemistryOocytesChickensSwineColforsinReceptors, FSHRelaxinGonadotropins, PituitaryParacrine CommunicationEstrous CycleInsulin-Like Growth Factor IPregnenoloneCulture Media, Serum-FreeGonadal Steroid HormonesReverse Transcriptase Polymerase Chain ReactionGATA6 Transcription FactorEstrusCoculture TechniquesSheepCulture Media, ConditionedTissue Culture Techniques