In the fetus,blood can flow from the right atrium to the left atrium through the
A)tricuspid valve.
B)ductus arteriosus.
C)foramen ovale.
D)ductus venosus.

Question

Quizplus · Accepted Answer

In the fetal circulatory system, blood can flow from the right atrium to the left atrium through the foramen ovale, a small opening between the two atria that allows oxygenated blood to bypass the lungs. The tricuspid valve and ductus venosus are involved in other aspects of fetal circulation, while the ductus arteriosus connects the pulmonary artery to the aorta, allowing blood to shunt away from the non-functional fetal lungs.

In the Fetus,blood Can Flow from the Right Atrium to the Left