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Multiple Choice

Ligamentum venosum during fetal life is which vessel?

In fetal life the ductus venosus is a key shunt that carries oxygenated blood from the umbilical vein directly into the inferior vena cava, bypassing the liver sinusoids. After birth this vessel closes and becomes a fibrous cord called the ligamentum venosum, located in the liver along the fissure of the ligamentum venosum. So the ligamentum venosum corresponds to the ductus venosus in the fetus. The other vessels have different fates: the umbilical vein becomes the ligamentum teres hepatis after birth; the ductus arteriosus becomes the ligamentum arteriosum; the portal vein remains a major hepatic vessel, not a remnant of this shunt.

In fetal life the ductus venosus is a key shunt that carries oxygenated blood from the umbilical vein directly into the inferior vena cava, bypassing the liver sinusoids. After birth this vessel closes and becomes a fibrous cord called the ligamentum venosum, located in the liver along the fissure of the ligamentum venosum. So the ligamentum venosum corresponds to the ductus venosus in the fetus. The other vessels have different fates: the umbilical vein becomes the ligamentum teres hepatis after birth; the ductus arteriosus becomes the ligamentum arteriosum; the portal vein remains a major hepatic vessel, not a remnant of this shunt.