NO
Provides oxygen and nurishment to the featus.
Fetal mammals don't "eat" anything; they get their nutrients through the placenta.
Umbilical Cord
Placenta previa, placenta accreta, placenta increta, and placenta increta are all conditions stemming from abnormal implantation of the placenta.
No. seahorses are ovoviviparous...meaning they produce eggs but their eggs are in the placenta rather than being outside the body!
Placenta comes out after each kitten.
how nutrients,oxygen and waste are exchange between the fetus and the mother
The umbilical cord is attached to the placenta and the placenta is attached to the wall of the uterus
Before placental development the conceptus gets nutrition from uterine secretions. After placentation nutrition comes from the mare via the placenta.
Yes. But the movement is relative. Placenta does not change the position. But lower placenta may move up. So that placenta previa may become normal placenta.
Placenta Previa