Ovaries (upper left) removed from a cow on day 3 after estrus.  The left ovary contains a corpus hemorrhagicum (red) representing the recent ovulation and a corpus albicans representing the corpus luteum of the previous cycle.  A cross section of the left ovary (upper right) reveals the regressed corpus luteum from the previous estrous cycle (lower left) as well as the growing new corpus luteum (upper center).  The left ovary also is shown in an ultrasonogram (lower left). Two emerging follicles (1), the regressed corpus luteum (2) and the ovarian stroma (5) are labeled in a diagram of the ultrasonogram (lower right).  The ruler units are cm.

Bovine ovaries on day 3 after estrus

Credit: Pieterse MC (1999)

Digital Credit: Maarten Drost

Publisher: None

Rights: Name must appear as a credit whenever the image is used -

Description: Ovaries (upper left) removed from a cow on day 3 after estrus. The left ovary contains a corpus hemorrhagicum (red) representing the recent ovulation and a corpus albicans representing the corpus luteum of the previous cycle. A cross section of the left ovary (upper right) reveals the regressed corpus luteum from the previous estrous cycle (lower left) as well as the growing new corpus luteum (upper center). The left ovary also is shown in an ultrasonogram (lower left). Two emerging follicles (1), the regressed corpus luteum (2) and the ovarian stroma (5) are labeled in a diagram of the ultrasonogram (lower right). The ruler units are cm.

Resolution: 500x394

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