Blood entering the fetal right atrium bypasses the lungs through the ____.
A)umbilical arteries
B)umbilical veins
C)ductus venosus
D)foramen ovale
E)ductus arteriosus

Question

Blood entering the fetal right atrium bypasses the lungs through the ____. ​
A)umbilical arteries
B)umbilical veins
C)ductus venosus
D)foramen ovale
E)ductus arteriosus

Quizplus · Accepted Answer

The foramen ovale allows blood to bypass the lungs by moving directly from the right atrium to the left atrium in the fetal heart, as the lungs are not yet in use for oxygen exchange.

Blood Entering the Fetal Right Atrium Bypasses the Lungs Through