Enfermeria

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  • Publicado : 26 de abril de 2010
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|How can women control their fertility?|
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|Hormones|
|Hormones are chemicals, which are involved in the long term control of a variety of processesin the body. |
|They are secreted by special glands directly into the bloodstream and transported around the body. Hormones only affect theirspecific target organ. |
|The Menstrual Cycle |
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|A woman’s menstrual cycle is 28 days long.|
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|Day 1 of the cycle is the first day of a period (menstruation). The uterus lining breaks down blood is released. |
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