Updated February 12, 2009
Uterus DiagramA.D.A.M. @ About.com
The uterus is lined with a membrane called the endometrium. When a woman does not become pregnant, the lining is shed, resulting in a woman's period (menstruation). When a woman is pregnant, the lining thickens and helps support the needs of the egg.
hysterectomy is a surgery to remove the uterus.
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