Question

From which tissues does the placenta develop?

पर्याय

• From trophoblastic and maternal tissues

• From the inner cell mass and amnion

• From the three primary germ layers

• From the yolk sac and allantois only

Answer 1

The placenta develops from two sources: trophoblastic tissue derived from the embryonic blastocyst and maternal endometrial tissue of the uterus. This dual origin allows the placenta to serve as an effective interface between maternal and fetal circulations while maintaining separation of maternal and fetal blood.