Liver from a pig (400X)

The blood in the central veins, as seen in this image, is drained from the sinusoids, which in turn contain blood from the end branches of the vena porta and arteria hepatica.

The blood in the central veins is drained into insertion veins located along the base of the liver lobules. The insertion veins gather in larger branches, venae hepaticae, which in turn empties into the inferior vena cava.