noun (plural corpora lutea /ˈluːtɪə/)Anatomy
A hormone-secreting structure that develops in an ovary after an ovum has been discharged but degenerates after a few days unless pregnancy has begun.
- It is generally believed that symptoms result from the waning hormone secretions from the ovaries as the corpus luteum begins to degenerate towards the end of the menstrual cycle.
- It is secreted by the corpus luteum during pregnancy and by the ovaries during the luteal phase of the menstrual cycle.
- In the corpora lutea of the ovary, whirls of long needles are most distinct.
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