Question

Give a reason, “blood of mother never mixes up with that of fetus, yet it nourishes the fetus”.

Answer 1

Placenta:

1. The placenta is the reason that the mother's blood is not mixed with the fetus but it still provides it nutrition.
2. It is a temporary tissue in mammals that act as a barrier and gets developed during pregnancy.
3. A growing baby gets oxygen and nutrients from this structure.
4. It also cleans the baby's blood of waste materials.
5. The placenta adheres to the uterine wall, and the umbilical cord of the newborn emerges from it.