Ovaries on Day 0 of the Estrous Cycle. Day 0 = estrus. The active left ovary shows a (functionally regressed CL) and 2 follicles. Legend: 1 = follicle, 2 = corpus luteum, 5 = ovarian stroma. Source: Pieterse MC (1999) Printable version
Source: Pieterse MC (1999)