Progestogens
Progestogens
Progestogens (pronounced: proh-JES-tuh-jenz), also known as progestins or gestagens, are a type of hormone that plays a significant role in the menstrual cycle and pregnancy.
Etymology
The term "progestogen" is derived from the words "progestational steroid ketone". It was first used in the mid-20th century to describe synthetic hormones that mimic the effects of progesterone, a naturally occurring progestogen.
Function
Progestogens are primarily produced in the ovaries, adrenal glands, and in the placenta during pregnancy. They prepare the uterus for pregnancy by stimulating the growth of its lining, known as the endometrium. Progestogens also help maintain pregnancy by preventing the uterine muscles from contracting.
Types
There are two main types of progestogens: natural and synthetic.
- Natural progestogens: The most well-known natural progestogen is progesterone, which is produced by the corpus luteum in the ovaries and the placenta during pregnancy.
- Synthetic progestogens: These are man-made hormones that mimic the effects of natural progestogens. They are used in a variety of hormonal contraceptives, including birth control pills, intrauterine devices (IUDs), and contraceptive implants.
Related Terms
- Hormone: A chemical substance produced in the body that controls and regulates the activity of certain cells or organs.
- Menstrual cycle: The monthly series of changes a woman's body goes through in preparation for the possibility of pregnancy.
- Pregnancy: The period from conception to birth when a woman carries a developing fetus in her uterus.
- Progesterone: A hormone produced by the corpus luteum in the ovary and the placenta of pregnant women.
- Endometrium: The lining of the uterus.
- Uterine muscles: The muscles in the wall of the uterus that contract during childbirth.
- Corpus luteum: A structure in the ovaries that produces progesterone after an egg has been released.
- Hormonal contraceptives: Methods of birth control that rely on hormones to prevent pregnancy.
- Birth control pills: A type of hormonal contraceptive that is taken orally.
- Intrauterine devices (IUDs): A type of long-term hormonal contraceptive that is inserted into the uterus.
- Contraceptive implants: A type of long-term hormonal contraceptive that is inserted under the skin.
External links
- Medical encyclopedia article on Progestogens
- Wikipedia's article - Progestogens
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