Which of the following forms when blood vessels form in the chorion, around the periphery of the blastocyst?
A) allantois
B) placenta
C) blastocoele
D) amnion
E) trophoblast

Question

Quizplus · Accepted Answer

The formation of blood vessels in the chorion, which is the outermost membrane that surrounds the embryo, leads to the development of the placenta. The placenta serves as the site of nutrient and waste exchange between the maternal and fetal circulations. The allantois is a membrane that develops from the hindgut and is involved in the formation of the umbilical cord. The blastocoele is a fluid-filled cavity within the blastocyst. The amnion is a membrane that forms around the embryo and creates the amniotic sac. The trophoblast is a layer of cells that forms the outer layer of the blastocyst and gives rise to the placenta.

Which of the Following Forms When Blood Vessels Form in the Chorion