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
European Union and its Member States — Certain Measures Relating to the Energy Sector European Union and its Member States — Certain Measures Relating to the Energy Sector European Union and its Member States — Certain Measures Relating to the Energy Sector, DS476, is the formal name of a case brought by the Russian Federation against the European Union and its member states in the World Trade Organization's Dispute Settlement Body. The case was formally initiated with the filing of a complaint by Russia (in WTO terms, a "request for consultations") on April 30, 2014. The dispute concerns the EU's Third Energy Package, which consists of various two EU directives and EU regulations. Russia