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From girls into women: how estrogen and progesterone alter the female body, from sexual characteristics to spots and body image.Key facts
- Puberty in girls normally starts between the ages of 8 and 14.
- Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are released by the brain and target the ovaries.
- The ovaries produce estrogen and progesterone, which govern the menstrual cycle.
- The ovaries release one egg each month. If it goes unfertilized, progesterone levels fall and the womb lining breaks away.
Transcript
Puberty in girls normally starts between the ages of 8 and 14.
The follicle-stimulating hormone and luteinizing hormone released by the brain target the ovaries.
Follicle-Stimulating Hormone
Luteinizing Hormone
This stimulates the production of the female sex hormones, estrogen and progesterone.
Estrogen
Progesterone
These four hormones all work together to govern the biggest puberty ...
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