Study liver anatomy and function with our medical students test. Engage with detailed multiple choice questions, each with hints and explanations. Prepare effectively for your test!

Multiple Choice

Which fetal vessel bypassed some blood around the liver?

In fetal circulation, a special shunt called the ductus venosus connects the umbilical vein to the inferior vena cava, allowing a portion of oxygenated blood to bypass the liver. This direct route helps more highly oxygenated blood reach the heart and brain before it circulates through the liver. After birth, this vessel closes and becomes the ligamentum venosum. The hepatic artery supplies the liver with arterial blood, the umbilical artery carries fetal blood to the placenta, and the inferior vena cava returns blood to the heart — none of these provide the same hepatic bypass as the ductus venosus.

In fetal circulation, a special shunt called the ductus venosus connects the umbilical vein to the inferior vena cava, allowing a portion of oxygenated blood to bypass the liver. This direct route helps more highly oxygenated blood reach the heart and brain before it circulates through the liver. After birth, this vessel closes and becomes the ligamentum venosum. The hepatic artery supplies the liver with arterial blood, the umbilical artery carries fetal blood to the placenta, and the inferior vena cava returns blood to the heart — none of these provide the same hepatic bypass as the ductus venosus.