Which structure divides into right and left branches to supply the liver?

Which structure divides into right and left branches to supply the liver?

• A. Portal Veins
• B. Hepatic Arteries
• C. Bile Ducts
• D. Inferior Vena Cava

Answer: (A)

The portal venous system is responsible for delivering nutrient-rich blood to the liver, and it bifurcates into right and left branches right at the porta hepatis to feed the corresponding hepatic lobes. This division into right and left branches is a defining feature of how the liver receives its main inflow from the GI tract. The hepatic arteries also supply the liver but are not the classic example of a structure that splits into right and left for lobe perfusion in this context. Bile ducts carry bile, not blood, and the inferior vena cava is a major drainage vessel, not a supplier that divides to nourish the liver.

The portal venous system is responsible for delivering nutrient-rich blood to the liver, and it bifurcates into right and left branches right at the porta hepatis to feed the corresponding hepatic lobes. This division into right and left branches is a defining feature of how the liver receives its main inflow from the GI tract. The hepatic arteries also supply the liver but are not the classic example of a structure that splits into right and left for lobe perfusion in this context. Bile ducts carry bile, not blood, and the inferior vena cava is a major drainage vessel, not a supplier that divides to nourish the liver.