1. The Corpus luteum (meaning "yellow body" in Latin) is a temporary endocrine structure essential for female reproduction.
2. It forms in the ovary at the site of the ruptured ovarian follicle following ovulation (release of an egg).
3. Its primary role is the production of hormones, especially progesterone, which is crucial for preparing the uterus for pregnancy and maintaining it during the early stages.
4. The corpus luteum is therefore a structure found within the ovary.
5. It is not located in the brain, pancreas, or spleen.