Early Embryogenesis Placenta Formation and Twinning

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