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Answer to Question #63671 in Zoology for Sanjukta Ghosh
Question #63671
What is the foetal part of Choriovitelline placenta (or Yolk-sac placenta) formed of?
It is formed of chorion and yolk sac? Why's the vitelline in the name?
It is formed of chorion and yolk sac? Why's the vitelline in the name?
Expert's answer
A a foetal portion of Choriovitelline placenta is formed by the chorion.
Choriovitelline placenta is a type of placenta in which the yolk sac becomes an intermediary in the fetal-maternal relationship. There the vitelline takes up the whole of the inner embryonic layer and surrounds the embryo. The allantois shrinks.
Choriovitelline placenta is a type of placenta in which the yolk sac becomes an intermediary in the fetal-maternal relationship. There the vitelline takes up the whole of the inner embryonic layer and surrounds the embryo. The allantois shrinks.
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