Hepatic veins ultimately from numerous central veins of the liver lobules. None of the hepatic veins have valves. The hepatic veins are divided into an upper and a lower group. The upper three drain the central veins from the right, middle, and left regions of the liver and are larger than the lower group of veins. The lower group of from six to twenty smaller hepatic veins come from the right lobe and the caudate lobe, are in contact with the hepatic tissue, and are valveless. All the veins empty into the inferior vena cava at the back of the liver. Budd–Chiari
Proper adjective adjectives. In general, an adjective is capitalized if its meaning is "pertaining to "X"", where "X" is some specific person, place, language, or organized group. Most capitalized adjectives are derived from proper nouns; for example, the proper adjective "American" is derived from the proper noun "America". Sometimes, an adjective is capitalized because it designates an ethnic group with a shared culture, heritage, or ancestry. This usage asserts the existence of a unified group with common goals. For example, in Canadian government documents, "Native" and "Aboriginal" are capitalized. An adjective can lose its capitalization when it takes on new meanings, such