Which of the following statements are true of fetal circulation? (Read carefully and select all of the correct statements.)
A)The foramen ovale permits fetal blood to flow from the right ventricle to the left ventricle.
B)The ductus arteriosus permits fetal blood to flow from the pulmonary artery to the aorta.
C)Gases, nutrients, and waste products are exchanged between fetal blood and maternal blood in the placenta.
D)The two umbilical veins take blood directly to the fetal heart.
E)The two umbilical arteries take blood from the fetus to the placenta
F)Shortly after birth, the ductus arteriosus constricts and the flap of the foramen ovale closes.

Question

Quizplus · Accepted Answer

The foramen ovale allows blood to flow from the right atrium to the left atrium, not ventricles. The ductus arteriosus connects the pulmonary artery to the aorta. The placenta is where exchange occurs between fetal and maternal blood. There is one umbilical vein, not two, and two umbilical arteries. After birth, the ductus arteriosus constricts and the foramen ovale closes.

Which of the Following Statements Are True of Fetal Circulation