Fetus and Placenta Physiology Flashcards Preview

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Flashcards in Fetus and Placenta Physiology Deck (16):
1

The two layers that separate fetal and maternal blood are

endothelial of the fetal vessel and a layer of trophoblasts

2

The umbilical vein bypasses the liver via the

ductus venosus

3

Oxygenated blood coming up from the IVC bypasses the right ventricle via the

foramen ovale

4

The ___ ___ takes the deoxygenated blood from the pulmonary artery and puts it in the descending aorta

ductus arteriosus

5

___ are the primary hormone producers

syncytiotrophoblasts

6

hCG can be detected in the serum _ days after pregnancy; it takes _ days for the embryo to implant into the uterus

8;7

7

hCG levels should double every _ days for _ weeks; pain plus slowly rising hCG levels could indicate a

2;10; ectopic pregnancy

8

hCG tells the ___ __ to keep making __

corpus luteum; progesterone

9

The fetal adrenal gland and the placenta work together to make

estrogen

10

Fetal adrenal gland make a lot of ___ with no

androgen; negative feedback

11

The __come from the placenta itself while the __ is converted from a fetal adrenal produce

progesterone; estrogen

12

Progesterone is a smooth muscle __ and prevents __ __ formation

relaxant; gap junction

13

It also decreases ___ receptors

oxytocin

14

RU-846 is a __ antagonist

progesterone

15

Fetal adrenal glands make low levels of __ so the ACTH isn't turned off

cortisol

16

Estrogen __ the spiral arteries

vasodilate