Which veins drain blood from the caudate lobe?

The veins that drain blood from the caudate lobe are indeed the right and left hepatic veins. The caudate lobe is anatomically unique because it lies adjacent to both the right and left lobes of the liver and has its blood supply and drainage interfacing with these major hepatic structures. The right and left hepatic veins are responsible for draining venous blood from their respective liver lobes, including portions of the caudate lobe.

The right hepatic vein typically drains the right lobe and parts of the caudate lobe, while the left hepatic vein drains the left lobe and also collects blood from the remaining parts of the caudate lobe. This makes the right and left hepatic veins the main vessels involved in the venous drainage from the caudate region of the liver, distinguishing them as the correct choice in this context.

The other options do not accurately represent the drainage system of the caudate lobe. The hepatic artery and portal vein are involved in supplying blood rather than draining it. The falciform ligament and coronary ligament are anatomical structures related to liver attachment and do not have a role in venous drainage. The main lobar fissure and ligamentum venosum serve as landmarks and