The ductus venosus connects the umbilical vein to which major vessel?

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Multiple Choice

The ductus venosus connects the umbilical vein to which major vessel?

Explanation:
In fetal life, blood from the placenta travels in the umbilical vein, and a special shunt called the ductus venosus allows part of that blood to bypass the liver by connecting directly to the inferior vena cava. This puts highly oxygenated blood on a fast track toward the heart and brain. After birth, the ductus venosus closes and becomes the ligamentum venosum within the liver. So, the vessel it connects to is the inferior vena cava, with the blood then passing into the right atrium via the IVC.

In fetal life, blood from the placenta travels in the umbilical vein, and a special shunt called the ductus venosus allows part of that blood to bypass the liver by connecting directly to the inferior vena cava. This puts highly oxygenated blood on a fast track toward the heart and brain. After birth, the ductus venosus closes and becomes the ligamentum venosum within the liver. So, the vessel it connects to is the inferior vena cava, with the blood then passing into the right atrium via the IVC.

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