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| + | * After ovulation, the wall of the ruptured follicular cavity folds in. |
| + | * Slight haemorrhage occurs at the site of ovulation and fills the former cavity. |
| + | * This is known as the '''Corpus Haemorrhagicum'''. |
| + | * As the blood is resorbed, a solid '''Corpus Luteum''' is formed by proliferation of granulosa and theca intera cells as well as blood vessels. |
| + | * In the non-pregnant animal, corpora lutea are transient structures. |
| + | * Cyclic corpora lutea undergo proliferation and vascularisation directly after ovulation. |
| + | * The corpora lutea then regress and degenerate into a connective tissue scar, the '''Corpus Albicans'''. |
| + | * If the ovum is fertilised, the corpus luteum remains fully developed and active throughout at least part of the pregnancy. |
| + | * Corpora lutea produce progesterone. |
| + | * Progesterone prepares and maintains the uterus for implantation of the fertilised ovum. |