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The Placenta- Pt 1

43 Questions  I  By Mnathan21
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The Placenta- Pt 1

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1.  Placental function depends on the proper placental development from _____________ derived from the mother (_______________) and fetus (_______________)
2.  Sonographic evaluationthe placenta is a relatively ______________ organ that may exhibit varying degrees of ______________(late pregnancy) and _______________ spaces. (placental ________)
3.  Thin placenta is associated with-
4.  Some harmful substances are NOT able to be filtered out by the placenta such as _______________. Several types of infections and viruses may also cross this barrier such as _________________, _______________ and _________________.
5.  _________________ placenta previa is when the placental edge reaches the margin of internal os, not covering it. The placental edge extends up to, but not covering os. Requires follow up later in pregnancy.
6.  "Placental migration" is a misnomer, because in reality the placenta does not really move. There is growth in the _______________ _________________ _________________ during pregnancy which makes it appear as if the placenta moved upward. The enlarged uterus pulls the placenta toward the ____________ of the uterus.
7.  Any reference to the __________________ plate refers to the fetal side.
8.  The placenta can be identified sonographically as early as _____(#) - ____(#) weeks
9.  Name the four classifications of placenta previa in alphabetical order.
10.  The placenta is ________________ after the fetus is delivered. It is known as the "________________"
11.  Placental functions-Production of ________________. Produces _________________ and ___________________ which are important in maintaining pregnancy.
12.  _______________ ______________ placenta is technically not a true previa. The placental edge is in the lower uterine segment, but not covering the internal os. Placental edge is within 2cm of cervical os without covering it.
13.  ______________ _______________ is when a small edge or segment of the placenta extends over the margin of the internal os.
14.  The placenta is connected to the fetus via the ________________ _______________.
15.  _________________ _________________ is the most common cause of painless pleeding in the second and third trimesters.
16.  Signs and symptoms of placenta previa include painless vaginal bleeding in _____________ and _______________ trimesters.
17.  As a general rule, after 23 weeks, the placenta should be no thinner than ____(#) cm or thicker than ___(#) cm.
18.  The site of the former umbilical cord attachment is known as the _________________/_______________ (______________ _______________)
19.  The fetal surface is ___________ and covered by a ______________.
20.  Sonographic evaluation-Examination of the placenta is an important part of every obstetric sonogram. It is of critical importance when there is any indication of _____________ _____________, for example, in the setting of ______________ ______________.
21.  Placenta previa is most common in-
22.  The maternal side of the placenta is ______________ and _______________.
23.  The placenta is divided into two portions, the ________________ surface and ________________ surface.
24.  The placenta is the link between the ______________ and _____________.
25.  Any reference to the ________________ plate refers to the maternal side.
26.  Painful bleeding is a sign of _______________ _________________.
27.  Placental functions-____________________ out some substances which may be harmful to the fetus.
28.  The Basilar plate is divided into ______________, or functional lobes with irregular grooves.
29.  _______________ ________________ is abnormal location of the placenta in the lower part of the uterus with a portion of teh cervix being covered.
30.  Placental functions-Provides _______________ and ______________ to the fetus.
31.  The apparent change in placental location during the first part of a pregnancy is referred to as ___________________ _____________________.
32.  Attachment to the uterine wall can occur ___________________ within the uterine cavity.
33.  Placental functions-Removes _______ and ____________ from fetus. Oxygen, nutrients and water pass from mother to fetus, while CO2 and waste pass from fetus to mother.
34.  Sonographic evaluationExamination of the placenta can also give important clues regarding ______________ _______________, _______________, ________________, etc.
35.  ______________ _______________ is when the placenta covers the entire internal os. An overdistended bladder may mimic this.
36.  Where the placenta attaches is where the _________________ implants.
37.  Name the six locations of the placenta in alphebetical order
38.  Average placental size at maturity-Weight- ______(#) to _____(#) gramsSize- ______(#)  to _____(#) cmThickness: _____(#) cm (AP dimension)
39.  Large placenta size is associated with-
40.  Placenta previa occurs when the _________________ ___________________ _______________ is covered by the placenta. (Incidence is 1:_____(#) -_____(#) at >20-24 weeks.)
41.  Fetal well being depends on an ________________ and ________________ utero-placental vascular supply.
42.  List the four things the placenta should be evaluated for in alphabetical order-
43.  The placenta is highly _______________, and is a ____________________ organ, present during pregnancy only.
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