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Endometrium and Cervix


Picture of the endometrium and cervix

The cervix is the lower part of the uterus that opens into the vagina. It is also called the neck of the uterus.

The endometrium is the mucous membrane that lines the inside of the uterus (womb). The endometrium changes throughout the menstrual cycle. It becomes thick and rich with blood vessels to prepare for pregnancy. If the woman does not get pregnant, part of the endometrium is shed, causing menstrual bleeding.

ByHealthwise Staff
Primary Medical ReviewerSarah Marshall, MD - Family Medicine
Specialist Medical ReviewerKirtly Jones, MD - Obstetrics and Gynecology
Last RevisedJanuary 27, 2012

eMedicineHealth Medical Reference from Healthwise

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