After Birth, into What Structure Does the Umbilical Vein Evolve

Question

After birth, into what structure does the umbilical vein evolve?
A) lateral umbilical ligament
B) ligamentum venosum of the liver
C) ligamentum teres (round ligament) of the liver
D) ligamentum arteriosum

Accepted Answer

The umbilical vein, which carries oxygenated blood from the placenta to the fetus, transforms into the ligamentum teres (round ligament) of the liver after birth, when it becomes non-functional due to the baby starting to breathe air and no longer receiving blood from the placenta.