Ovaries on Day 2 of the Estrous Cycle.

Ovaries on Day 2 of the Estrous Cycle.
The left ovary shows a corpus hemorrhagicum (red) which has a soft consistency, as well as a corpus albicans (yellow) which has a firm / dense consistency. Legend: 1 = follicle, 4 = regressed corpus luteum, 5 = stroma.

Pieterse MC (1999)