Key Terms
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20 terms
Terms | Definitions |
|---|---|
 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. |
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