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Early Embryogenesis Placenta Formation and Twinning
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Which structure handles elimination of wastes and gas exchange for the developing fetus?
Placenta
What is in the umbilical cord?
1 umbilical vein
2 umbilical arteries
The umbilical vein carries _______________ blood from the _____________ to the ________________
Oxygenated
Placenta
Fetus
The umbilical arteries carry ______________ blood from the ______________ to the _______________
Deoxygenated
Fetus
Placenta
Where does the placenta come from?
Combination of trophoblast and extraembryonic mesoderm (fetus) and uterine endometrium (mom)
Blood supplies of mother and embryo do/do not mix
Do not
What is placenta previa?
Placenta develops on lower end of uterus towards cervix
Where is the placenta normally located?
On fundus (upper) of uterus
Monozygotic twins splitting occurs usually at the _____________ stage
Blastocyst
Monozygotic twins normally have their own __________________ but share _______________
Amniotic cavity
Placenta and chorionic cavity
Splitting events in the _______________ may lead to conjoined twins
Primitive node and streak
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Author
stepha998
ID
341809
Card Set
Early Embryogenesis Placenta Formation and Twinning
Description
ATSU
Updated
2018-08-14T05:06:54Z
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