Luteal phase
Luteal Phase
The Luteal Phase (pronounced: LOO-tee-ul) is a stage in the menstrual cycle that occurs after ovulation and before the start of a woman's period.
Etymology
The term "Luteal Phase" is derived from the Latin word "luteus," which means "yellow." This is in reference to the yellowish color of the corpus luteum, a structure that forms in the ovary after ovulation and produces progesterone.
Definition
The Luteal Phase is the second half of the menstrual cycle, beginning with ovulation and ending with the start of the menstrual period. It typically lasts between 12 and 14 days. During this phase, the corpus luteum produces progesterone, which prepares the endometrium (the lining of the uterus) for potential pregnancy.
Related Terms
- Corpus Luteum: A temporary endocrine structure in female ovaries that is involved in the production of relatively high levels of progesterone and moderate levels of estradiol and inhibin A.
- Progesterone: A hormone released by the corpus luteum that stimulates the uterus to prepare for pregnancy.
- Endometrium: The inner epithelial layer, along with its mucous membrane, of the mammalian uterus. It has a basal layer and a functional layer; the functional layer thickens and then is sloughed during the menstrual cycle or estrous cycle.
- Menstrual Cycle: The monthly cycle of changes in the ovaries and the lining of the uterus (endometrium), starting with the preparation of an egg for fertilization.
See Also
External links
- Medical encyclopedia article on Luteal phase
- Wikipedia's article - Luteal phase
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