Fig. 3.

Photomicrographs of representative ovarian cross section from control, PCOS, Metformin and Quercetin treated rats after 21 days of experiment. a Control with different stages of ovarian follicles including primary follicles (PF), developing follicles (DF), corpus luteum (CL) and atretic follicle. b PCOS rat ovary cross-section containing various cystic follicles (CF) and atretic follicles (AF). c Metformin-treated rat ovary with primary follicles (PF), developing follicles (DF), atretic graffian follicle (GF), corpus luteum (CL) and atretic follicle (AF). d Quercetin treated rat ovary containing primary follicles (PF), developing follicle (DF), a healthy graffian follicle (GF), corpus luteum (CL) and atretic follicle (AF)