Which of the following statements are true of fetal circulation (Select all that apply)?
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 ductus arteriosus allows blood to bypass the lungs by flowing from the pulmonary artery to the aorta. The placenta is the site of exchange for gases, nutrients, and waste between fetal and maternal blood. The umbilical arteries carry deoxygenated blood from the fetus to the placenta. After birth, the ductus arteriosus constricts and the foramen ovale closes to establish normal circulation.

Which of the Following Statements Are True of Fetal Circulation