AP BIOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -The hepatic portal vein receives blood specifically from the stomach, intestines, pancreas, and spleen, and carries it into the liver through the porta hepatis. The porta hepatis serves as the point of entry for the hepatic portal vein and the proper hepatic artery, and is the point of exit for the bile passages.

Detailed explanation-3: -Blood Supply of the Liver Blood leaves the liver through the hepatic veins. This blood is a mixture of blood from the hepatic artery and from the portal vein.

Detailed explanation-4: -The hepatic artery usually originates off the celiac trunk. However, branches or the entire hepatic arterial system can originate off the superior mesenteric artery. The right and left hepatic arteries can also arise separately off the celiac axis.