The corpus luteum prevents loss of the implanted embryo through menstruation by secreting estrogens and progesterone.
The corpus luteum is a highly vascularized endocrine gland composed of luteal cells from granulosa and luteal cells from theca.
- Lutein granulosa cells represent 80% of the cell population of the corpus luteum and secrete progesterone and estrogens.
- Progesterone will act on the uterine mucosa, transforming it into a secretory tissue that will later house the fertilized egg or embryo.
Therefore, we can conclude that the corpus luteum is a temporary endocrine gland that mainly secretes progesterone and estrogens.
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