Which statement below accurately describes the role of the ductus arteriosus?
Explanation & Rationale
Choice A rationaleThe ductus arteriosus does not connect the umbilical artery to the inferior vena cava. It connects the pulmonary artery to the aorta, bypassing the lungs in fetal circulation.Choice B rationaleThe ductus arteriosus carries deoxygenated blood from the right side of the heart to the aorta. It does not carry oxygenated blood from the left side of the heart.Choice C rationaleThe ductus arteriosus is not located between the right and left atrium. It is a blood vessel connecting the pulmonary artery to the aorta in fetal circulation.Choice D rationaleIn fetal circulation, the pulmonary artery and aorta are connected via the ductus arteriosus. This allows blood to bypass the fetal lungs, which are not yet functional.NGN QUESTIONS