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20 terms

Key Terms

STUDY
PLAY
Braxton's hicks
"False" labor; normal contractions not associated with progressive cervical dilation
Bloody show
A term used to descrbe a small amount of blood-tinged mucus flowing from the vagina; may herald the onset of labor
Cervical dilation
A measurement of the opening available in the cervix for the passage of untrine contents (closed- 8 cm in obstetric measurements)
Cervical effacement
A process in which te cervix softens and thins and is taken up into the lower uterine segment
Contractions
Muscular actions of the uterus to expel the fetus.
Crowning
A term uded to describe the event in which the largest diameter of the fetal head is encircled by the vulvar ring.
Descent
Movement of the fetud through the pelvic canal caused by the forcr of uterine contractions.
Expulsion
Delivery of the shoulders and body of the fetus.
Extension rotation
Rotation of the fetal head back to its original position as the head passes over the perineun (after crowning)
Flexion
A change in the relative position of the cervical spine bringing the fetal head toward the chest; in the occipitoanterior position, the result is a smaller diameter of the presenting part; in the occipitoposterior, a larger diameter.
Gravida
a term that indicates the number of times a woman has been pregnant.
Internal rotation
Ratation of the fetal head as it meets the musculature of the pelvic floor; precise movements depend on initial position of the fetus relative to the pelvis
Lie
Relationship that exists between the long axis of the fetus and the long axis of the mother
Lightening
A term used to describe the settling of the fetal head into the brim of the pelvis
Parity
A term that indicates the number of times a woman has given birth; a multiple-birth experience is considered one birth.
Position
Relationship between the presenting fetal part and the maternal body pelvis (most common is occiput anterior (OA).
Presentation
A term rferring to the fetal part overlying the pelvic inlet (Normal the fetal head but may be breech(buttocks) or compound (more than one part).
Station
A measurement of the descent of the presenting part of the fetus in relationship to the ischial spines.
Episiotomy
Surgical incision of the perineum to enlarge the vaginal to facilitate delivery.
Uterus
A hollow muscular organ in the pelvic cavity of females.