The uterus is a hollow, pear-shaped organ in a woman's lower
abdomen in which a fetus grows during pregnancy. When a woman is not pregnant,
her monthly menstrual period flows from the uterus.
The lower part of the uterus (cervix) opens into the vagina. The
opening to the cervix is narrow except during labor and birth, when it
stretches and widens to allow the baby's passage out of the uterus.
Kathleen Romito, MD - Family Medicine & Martin J. Gabica, MD - Family Medicine
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