Nichols OB1

Question 1

Placenta

Answer 1

Temporary organ connecting fetus and mother providing the equivalent of respiratory and renal services

Question 2

Chorion

Answer 2

Plate shaped tissue under part of the amniotic sac containing fetal blood vessels that branch into villi projecting projecting into space filled with maternal blood.

So basically, the ftal blood vessels branch into these villi which get into this pool of maternal blood. The area that these blood vessels come from is called the chorion

Question 3

Trophoblast

Answer 3

outer layer of blastocyst that implants in the uterus and forms placenta

Question 4

Decidua

Answer 4

outer layer of placenta that normally peels off myometrium and sheds placenta.

Question 5

In the first trimester, the chorionic villi are covered by a double layer of cells, the inner cytotrophoblast and the outer syncytiotrophoblast. As the pregnancy moves along, these villi will include more fetal blood vessels, be ceovered by less interstitium, and have a thinner trophoblast covering

Answer 5

ok

Question 6

What is the most common pathogenesis of an ectopic pregnancy?

Answer 6

scarring from previous infection of the tube

May also be due to adhesions from apendicitis

Question 7

spontaneous abortion

Answer 7

loss before 20 weeks

Question 8

First trimester pregnancy loss usually due to

Answer 8

genetics

Question 9

Second trimester pregnancy loss due to

Answer 9

infection

Question 10

Third trimester preg loss due to

Answer 10

vascular complications

Question 11

Recurrent spontaneous abortion often due to

Answer 11

immunologic factors….especially antiphospholipid syndrome

Question 12

Placenta Previa

Answer 12

implantation low in the uterus….often results in severe bleeding, may result in placental rupture, bleeding and death

Question 13

Placenta Acreta

Answer 13

when the placenta attaches to the myometrium

Question 14

Placenta Increta

Answer 14

Placenta penetrates myometrium

Question 15

Placenta percreta

Answer 15

through uterine wall….KNOW that all of these conditions are caused by defective decidua

Question 16

Hydatidiform mole

Answer 16

Abnormal gestation caused by two sperm penetrating one egg or one/two sperm penetrating an empty egg

Question 17

Complete moles are

Answer 17

diploid

Question 18

Partial moles are triploid

Answer 18

ok

Question 19

Dx of hydatidiform mole

Answer 19

abnormally high bHCG

Question 20

Tx of Hydatidiform mole

Answer 20

Dand C

Question 21

Placental infections

Answer 21

TORCH
T- toxoplasma
O- other....syphillis, HIV,
R- Rubella
C- cytomegalovirus
H- Herpes 

These all spread hematogenously

Question 22

Finish….start at chorioamnionits

Answer 22

ok