What does "Uterus" mean?
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The uterus is a key organ in a woman's body that plays a major role in pregnancy. It is often described as a hollow, muscular structure shaped like an upside-down pear. The main job of the uterus is to house and support a developing baby during pregnancy.
Structure
The uterus has several important parts:
- Endometrium: The inner lining that thickens to prepare for a fertilized egg. If pregnancy does not occur, this lining sheds during menstruation.
- Myometrium: The thick muscular layer that contracts during labor to help push the baby out.
- Cervix: The lower part of the uterus that opens into the vagina. It acts as a barrier, keeping the fetus safe inside the uterus.
Changes During Pregnancy
During pregnancy, the uterus undergoes significant changes:
- Growth: The uterus expands to accommodate the growing baby. This growth happens in different directions at various stages of pregnancy.
- Cervical Changes: The cervix also changes; it softens and shortens as the pregnancy progresses, preparing for childbirth.
These changes are essential for a healthy pregnancy and safe delivery. Understanding these features helps in studying pregnancy and finding ways to address complications that may arise.