The Fascinating Functions and Importance of Corpus Lutein
– corpus luteum
– temporary endocrine structure
– female ovaries
– produces progesterone, estradiol, and inhibin A
– remains of ovarian follicle after ovulation
– inhibits release of gonadotropin-releasing hormone and luteinizing hormone
– new corpus luteum forms with each menstrual cycle
– size ranges from under 2 cm to 5 cm in diameter
– develops from follicular cells
– produces progesterone from cholesterol
– increase in enzyme P450scc during corpus luteum development
– involved in metabolism and produces antioxidant enzymes
– secretes progesterone and relaxin
– responsible for development and maintenance of endometrium and softening of pubic symphysis
– if egg is not fertilized, corpus luteum degenerates into scar tissue
– if egg is fertilized, corpus luteum continues to secrete progesterone
– prostaglandins can cause degeneration of corpus luteum and abortion of fetus
– in placental animals like humans, placenta takes over progesterone production
– luteal support involves administration of medication (progestins)
– corpus luteum gets yellow color from carotenoids, particularly lutein
– temporary endocrine structure in female mammals that forms after ovulation
– carotenoids concentrated from animal’s diet
– similar structures and functions in some reptiles
– dairy cattle follow similar cycle
– mentions pathology of corpus luteum cyst
– yellow hormone-secreting body in female reproductive system
– formed in ovary after ovulation
– made up of lutein cells
– secretes estrogens and progesterone
– prepares uterus for implantation and nourishment of embryo
– becomes inactive after 10-14 days if egg is not fertilized
– leads to menstruation.