Читать книгу Getting Pregnant For Dummies - Sharon Perkins - Страница 35

The uterus, or womb, is a pear-shaped organ designed to hold and nourish a baby for nine months. The uterus acts as an incubator for the pregnancy, allowing the child to develop to a stage that it can exist in the environment on its own. But the uterus also has to be structured for labor, which allows delivery of the child. So it has two functional layers: an interior lining for implantation and growth of the pregnancy (endometrium) and a muscular layer for labor (myometrium). Every month the lining of the uterus, called the endometrium, thickens to make a nourishing bed for an embryo. If you don’t get pregnant that month, the lining breaks down and is shed as your menstrual flow, or period.