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Placenta PP
Placenta Basics
10
Veterinary Medicine
Professional
08/22/2016

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Cards

Term
What are the three layers of the placenta?
Definition
-chorion
-allantois
-amnion
Term
True or False: Chorion and Allantois are opposite sides of the Chorioallantois membrane.
Definition
-TRUE
Term
Categorize the placenta of the following species:
a) humans/non-human primates
b) dogs
c( ruminants
d( cats
e) horses
f) pigs
Definition
a) discoid
b) zonary
c) cotyledonary
d) zonary
e) diffuse microcotyledonary
f) diffuse
Term
What does it mean to have an epithelial-chorial placenta? Which animals have epithelial-chorial placentas?
Definition
-epithelium of the endometrium interfaces with the chorion
-horse, cow, pig, goat, sheep
Term
What does it mean to have an endothelial-chorial placenta? Which animals have this?
Definition
-endothelium of the endometrium interfaces with the chorion
-dog and cat
Term
What does it mean to have a hemochorial placenta? Which species have this?
Definition
-chorion of the placenta is bathed in the mother's blood
-humans
Term
What is immunologically special about the placenta?
Definition
-does not express MHC complexes
Term
In which species does adventitial placentation occur?
Definition
-ruminants
Term
Which animal has a placental star?
Definition
-horse
Term
What is a red bad delivery?
Definition
-premature placental separation
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