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Obgyn 2 > Chapter 19 and 20 > Flashcards

Chapter 19 and 20 Flashcards

1
Q

What is a bilobed placenta?

A

extra placenta lobe smaller than the placenta

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2
Q

What are uterine contractions that do not lead to labor?

A

Braxton hicks

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3
Q

What are cotyledons?

A

A lobule or subdivision of the maternal placenta containing fetal vessels, chorionic villi, and the intervillous space.

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4
Q

What is the functional layer of the endometrium in the gravid woman?

A

Deciduas

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5
Q

What is the area between the myometrium and the placenta called?

A

Retroplacental

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6
Q

What is the valsalva maneuver?

A

Inhalation and suspension of breath coupled with abdominal muscle contraction to increase abdominal pressure

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7
Q

What is the vernix caseosum?

A

White, cheese-like coating of fetal skin

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8
Q

What is the mucous tissue surround the umbilical cord?

A

Wharton’s jelly

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9
Q

Vascular resistance changes in the umbilical cord can be caused by:

A

Umbilical cord compression, placental tumor and maternal diabetes

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10
Q

The umbilical cord originates from fusion of the yolk sac stalk and the omphalomesenteric duct at approximately:

A

7 weeks gestation

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11
Q

The umbilical cord consists of:

A

two arteries, a vein, and Wharton’s jelly

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12
Q

Placental calcification may be caused by

A

maternal smoking, parity and season of the year

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13
Q

Umbilical arteries carry _________ blood from the fetus to the placenta. The umbilical vein returns _________ back from the placenta.

A

deoxygenated, oxygenated

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14
Q

A low-lying placenta or placenta previa may mimic a uterine _________ or _________.

A

contraction or fibroid

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15
Q

What is marginal insertion?

A

When the umbilical cord inserts at the placental margin instead of centrally.

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16
Q

What is another name for marginal insertion?

A

battledore placenta

17
Q

What method assess the degree of umbilical cord coiling?

A

Umbilical coiling index

18
Q

Placental hydrops produces a :

A

Thick placenta with “ground glass” appearance

19
Q

A jelly-like placenta is associated with:

A

IUGR

20
Q

A succenturiate placenta:

A

most often has velamentous umbilical cord insertion

21
Q

What are risk factors for placenta previa?

A

Previous c-section, multiple gestations, and previous elective abortions

22
Q

A placenta is considered low lying if the inferior margin is:

A

Within 2 cm of the internal os

23
Q

The most infiltrative form of placenta accreta is:

A

Percreta

24
Q

Attachment problems of the placenta are known as:

A

Morbidly adherent placenta, placental attachment disorder, and abnormally invasive placenta

25
Q

Placental infarction is caused by?

A

Obstructed spiral arteries

26
Q

A benign vascular malformation of the placenta is:

A

Chorioangioma

27
Q

Premature separation of all or part of the placenta from the myometrium is:

A

Abruption

28
Q

Amniotic band syndrome is a condition that:

A

Is a result of rupture of the amnion without rupture of the chorion

29
Q

A condition of pregnancy where the trophoblastic cells produce excessive amounts of β-human chorionic gonadotropin is:

A

Molar pregnancy

30
Q

SUA is associated with:

A

Cardiovascular malformations, central nervous system defects, and musculoskeletal abnormalities

31
Q

PRUV, a common vascular variant, describes:

A

Open right portal vein

32
Q

TTTS is caused by:

A

monochorionic twin pregnancies sharing a placenta with anastomoses between the umbilical vessels

33
Q

Prenatal management of known umbilical pseudo and true cysts:

A

Involves serial ultrasound examinations

34
Q

Cord prolapse is defined as:

A

presentation of the umbilical cord in advance of the fetal presenting part during labor and delivery

35
Q

Subamniotic cysts or subamniotic hematomas result from rupture of _________ close to the umbilical cord insertion into the placenta

A

Chorionic vessels

Obgyn 2 (12 decks)

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