OB-GYN 101

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The Cervix

The opening of the uterus is called the cervix.

While the cervix is considered a portion of the uterus, it is functionally and histologically quite different. It is composed of dense connective tissue, with very little smooth muscle. The body of the uterus, in contrast, is primarily smooth muscle.

CervixThe cervix is located at the top of the vagina and is easily visualized by inserting a vaginal speculum fully into the vagina and opening the blades. The firm, smooth, pink structure appearing at the end of the vagina is the cervix.

The cervix is of clinical significance because of:

  1. The role it plays in pregnancy, remaining tightly closed for the bulk of gestation, then, at just the right time, thinning and opening to allow for birth of the baby.

  2. It's vulnerability to cervical dysplasia and, by extension, cancer of the cervix, and

  3. The occasional patient who experiences symptoms of cervicitis, primarily painful intercourse and vaginal discharge.

 Cervix

Cervix

 

OB-GYN 101: Introductory Obstetrics & Gynecology
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