Hepatic portal system vena cava (thus bypassing the liver). Blood flow to the liver is unique in that it receives both oxygenated and (partially) deoxygenated blood. As a result, the partial gas pressure of oxygen (pO) and perfusion pressure of portal blood are lower than in other organs of the body. Blood passes from branches of the portal vein through cavities between "plates" of hepatocytes called sinusoids. Blood also flows from branches of the hepatic artery and mixes in the sinusoids to supply the hepatocytes with oxygen. This mixture percolates through the sinusoids and collects in a central vein which drains into the
Nominalized adjective Nominalized adjective A nominalized adjective is an adjective that has undergone nominalization, and is thus used as a noun. For example, in "the rich and the poor", the adjectives "rich" and "poor" function as nouns denoting people who are rich and poor respectively. The most common appearance of the nominalized adjective in English is when an adjective is used to indicate a collective group. This happens in the case where a phrase such as "the poor people" becomes "the poor". The adjective "poor" is nominalized, and the noun "people" disappears. Other adjectives commonly used in this way include "rich", "wealthy",