Entry from British & World English dictionary
A hormone secreted during pregnancy by the placenta which stimulates continued production of progesterone by the ovaries.
- This chorionic gonadotrophin makes the ovary continue to secrete progesterone, which in turn, via the blood, makes the uterus maintain its welcoming lining, avoiding the catastrophe (for an embryo) of menstruation.
- Ectopic pregnancies produce lower concentrations of human chorionic gonadotrophin than normal pregnancies, but the change in concentrations provides more information.
- There is a sudden rise of a hormone called human chorionic gonadotrophin during early pregnancy, which controls the production of other pregnancy hormones.
For editors and proofreaders
Line breaks: chori|on¦ic go¦nado|troph¦in
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