Placental Path

Question 1

Main role of placenta is to exchange

Answer 1

gases between mom and baby

Question 2

Placenta primarily arises from tissue called

Answer 2

trophoblasts

Question 3

___ grows back over the implanted embryo

Answer 3

Endometrium

Question 4

Initially during secondary implantation __ fill and block maternal arteries; eventually, they remodel the vessel to create a __ ___ system

Answer 4

trophoblasts; low pressure

Question 5

50% of SABs are due to ____ defects, and the rest are physical issues with the __

Answer 5

genetic; mom (diabetes, endocrine, uterus issues)

Question 6

In the fetus the umbilical __ has higher oxygen content than the __

Answer 6

vein; arteries

Question 7

A safe length of umbilical cord length is

Answer 7

32 cm

Question 8

3 layers of placental membrane

Answer 8

Amnion, chorion, decidua from mom

Question 9

What is the functional unit of the placenta

Answer 9

vasculosynctial membrane

Question 10

Most placentas have some functional

Answer 10

reserve

Question 11

Two ways for placenta to get infected

Answer 11

ascending via vaginal canal or homogenous from the mom

Question 12

Ascending infections tend to be ___ while homogenous membranes tend to be and the __ infections

Answer 12

bacterial; viral; torch

Question 13

Homogenous infection is called ___ while ascending infection is called ___ or ___

Answer 13

villitis; chorioamnionitis; funisitis

Question 14

Ascending infections are the most common cause of ___ while homogenous infections cause ___ ____

Answer 14

preterm labor; growth restriction

Question 15

CMV usually only causes infection in ___ disease

Answer 15

primary

Question 16

Retroplacental hemorrhage is bleeding between the placenta and the __ and it is most commonly associated with

Answer 16

uterus; hypertension

Question 17

Hypertensive villous changes include __ placentas and increased __ or __

Answer 17

small; infarcts; hematoma

Question 18

Hypertensive changes of maternal vessels

Answer 18

maintenance of smooth muscle tone, muscular hypertrophy

Question 19

Triad of preeclampsia symptoms

Answer 19

hypertension, proteinuria, peripheral edema

Question 20

Reason for preeclampsia

Answer 20

superficial penetration of trophoblasts into uterine wall

Question 21

Preeclampsic arteries show ___ and __ on path

Answer 21

atherosclerosis and filling with foamy macrophages on path

Question 22

Chorangioma is excess growth of fetal __

Answer 22

villi

Question 23

Complete moles are entirely ___ derived

Answer 23

paternally

Question 24

A hallmark of a complete mole is __ hyperplasia

Answer 24

trophoblast

Question 25

Molar pregnancies are at risk of transforming into a

Answer 25

choriocarcinoma