When describing the structures involved in fetal circulation, the nursing instructor describes which structure as the opening between the right and left atrium?
A) Ductus venosus
B) Foramen ovale
C) Ductus arteriosus
D) Umbilical artery
B
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The foramen ovale is the opening between the right and left atrium. The ductus venosus connects the umbilical vein to the inferior vena cava. The ductus arteriosus connects the main pulmonary artery to the aorta. The umbilical artery carries blood to the placenta.
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