Which of the following is the structure that allows blood to flow from the right atrium of the fetal heart directly to the aorta, thus bypassing the nonfunctioning lungs?
A) ductus arteriosus
B) fossa ovalis
C) ductus venosus
D) foramen ovale
E) allantois

Question

Quizplus · Accepted Answer

The ductus arteriosus is a blood vessel that connects the pulmonary artery to the aorta in the fetus. It allows blood to flow from the right atrium of the fetal heart directly to the aorta, thus bypassing the nonfunctioning lungs.

Which of the Following Is the Structure That Allows Blood