In a fetus, the ductus arteriosus is the fetal connection between the pulmonary trunk and which structure(s) ?
A) aorta
B) superior vena cava
C) coronary sinus
D) inferior vena cava
E) thoracic arteries

Question

Quizplus · Accepted Answer

The ductus arteriosus connects the pulmonary trunk to the aorta in a fetus, allowing blood to bypass the lungs as the fetus receives oxygen from the mother's placenta instead. After birth, the ductus arteriosus closes and becomes the ligamentum arteriosum.

In a Fetus, the Ductus Arteriosus Is the Fetal Connection