Labor and Delivery: Cervical Changes

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Questions and Answers

What is the function of uterine contractions during labor?

To facilitate cervical change (correct)
To prevent cervical dilation
To inhibit fetal descent
To maintain a closed cervix

What does cervical dilation refer to?

Shortening of the cervix
Thinning of the cervix
Opening of the cervical os (correct)
Softening of the cervix

What is the definition of cervical effacement?

The measurement of fetal descent
The softening, shortening, and thinning of the cervix (correct)
The rotation of the fetal head
The widening of the cervix

What does 'station' refer to in the context of labor?

<p>The relationship of the ischial spines to the presenting part of the fetus (A)</p> Signup and view all the answers

What anatomical landmark does 'Station 0' relate to?

<p>The narrowest diameter the fetus must pass through (D)</p> Signup and view all the answers

Flashcards

What is cervical dilation?

The enlargement or opening of the cervical os, measured in centimeters.

What is cervical effacement?

The softening, shortening, and thinning of the cervix.

What indicates fetal station?

The relationship of the fetal presenting part to the ischial spines of the maternal pelvis.

What is Station 0?

The narrowest diameter the fetus must pass through during birth.

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What is the role of uterine contractions?

Assist in cervical change (dilation and effacement) and fetal descent during labor.

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Study Notes

Uterine contractions facilitate cervical change, including dilation and effacement.
Dilation refers to the enlargement or opening of the cervical os, measured in centimeters.
Effacement involves the softening, shortening, and thinning of the cervix.
Station indicates the relationship of the ischial spines to the presenting part of the fetus.
Station assists in assessing fetal descent during labor.
Station 0 represents the narrowest diameter the fetus must pass through, corresponding to the ischial spine.

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Description

Learn about the cervical changes during labor and delivery. Dilation refers to the opening of the cervical os, measured in centimeters. Effacement involves the softening, shortening, and thinning of the cervix.