Cervical opening

Cervical opening: The opening at the lower part of the uterus that leads to the vagina.

There have to be enough sperm to break down the female's body's defenses, and then the mucous at the cervical opening has to be the right consistency, and then the ovum has to have been released properly, ...

to prevent miscarriage) that caused malformations of the reproductive organs in some who were exposed to the drug during fetal development Dilatation and curettage (D&C) - an operation that involves stretching the cervical opening to scrape ...

Assuming that the mother's cervix is soft and a little dilated, a finger must be inserted through the cervical opening in order to accurately determine the direction of the suture lines and to find the anterior fontanel.

Their cervical cap wells are deeper to contain the sperm and specially designed to fit comfortably over the cervical opening of any size cervix.

During pregnancy, your cervical opening becomes blocked with a thick plug of mucus that prevents bacteria from entering the uterus. When your cervix begins to loosen, this mucous plug is dislodged.

The first stage lasts from the onset of labour until there is full dilation (10 cm.) of the cervical opening. The first stage of labour is also called the stage of dilatation.

A soft catheter is passed through the speculum to the cervical opening and the semen is released from the catheter.

Placenta previa is the abnormal implantation of the placenta over the cervical opening (cervical os).

By your third trimester, the placenta should be near the top of your uterus, leaving the cervical opening clear for the delivery.

A pelvic exam, which allows the health professional to see whether the cervix is opening (dilating) or whether there is tissue or blood in the cervical opening or the vagina.

A thin tube, called a catheter, will be inserted through the cervical opening into the uterus. The catheter has a smaller tube (internal piston) inside it. The physician will withdraw the inner tube creating suction at the end of the catheter.

Mucus Plug-During pregnancy, a thick plug of mucus fills the cervical opening. This plug is here to keep bacteria out of the uterus. As the cervix thins and opens, this plug may fall out.

Late-term vaginal bleeding is an indication of a condition known as placenta previa, which causes the placenta to cover part or all of the cervical opening inside the uterus.

Cerclage - A procedure that is performed to stitch the cervical opening in a pregnant woman that experiences an incompetent cervix, which could lead to miscarriage or stillbirth.

Placenta previa (in which the placenta is too near the cervical opening) can also cause maternal hemorrhage and an immediate emergency C-section is called for.

cerclage - a procedure used to suture the cervical opening.
chorioamnionitis - a serious infection of the placental tissues.

Dilatation and curettage (D&C)
An operation that involves stretching the cervical opening to scrape out the uterus
Donor gametes
Eggs or sperm donated by individuals for medically assisted conception.

Dilation - Indicates the diameter of the cervical opening and is measured in centimeters; at 10 centimeters you are fully dilated ...

In this condition, the placenta partly or completely covers the cervical opening so that the baby can't move outward.
Abruptio placentae.

It has also been proposed that the term low lying placenta be used if the placental edge is located farther than 2 cm but within 3.5 cm from the internal cervical opening.

Here's how hysteroscopic myomectomy works: Most women are familiar with dilatation and curettage (D&C), a procedure in which the cervical opening is made slightly larger in order to put an instrument into the uterine cavity to scrape... More ...

The degree of penetration combined with the prone position of the woman allows the sperm to be deposited near the cervical opening.

Chorionic villus sampling: Diagnostic test done early in pregnancy. A biopsy of tissue is taken from inside the uterus through the cervical opening to determine abnormalities of pregnancy.

The risks of placenta previa (in which the placenta lies low in the uterus, partly or completely blocking the cervical opening and creating a high risk of hemorrhage) and placental abruption (in which all or part of the placenta separates from the ...

They can also stall labor, or, if they're located in or near the cervical opening, they may block the baby's passage. All of these (rather rare) problems can increase the likelihood of cesarean delivery.

- unexplained vaginal bleeding
- amniotic fluid leakage
- cervical incompetence, when the cervix begins to open prematurely
- placenta previa (placenta cover the cervical opening, whether partly or completely) ...

These procedures can increase the risk for problems such as prolapsed cord (when the cord slips down through the cervical opening). Emergency cesarean birth of the second fetus may be needed.

Some breech babies are positioned in a way that may allow safe vaginal delivery, whereas others aren't. Placenta previa does not always interfere with vaginal delivery if the cervical opening is covered only partially.

See also: Pregnancy, Cervix, Vagina, Uterus, During pregnancy