What is the primary (2/3) blood supply of the liver?Group of answer choicesBile canaliculiHepatic arteryHepatic veinPortal vein

The primary (2/3) blood supply of the liver comes from the Portal vein.

Explanation:

The liver receives blood from two main sources: the hepatic artery and the portal vein. The hepatic artery supplies oxygen-rich blood from the heart, while the portal vein carries nutrient-rich blood from the gastrointestinal tract.

Specifically, about 70% to 80% of the blood supply of the liver is from the portal vein, which is crucial for the liver's functions, including metabolism, detoxification, and nutrient processing. Therefore, among the choices given, the portal vein is the correct answer as it accounts for the majority of blood supply to the liver.

In contrast, the hepatic artery provides the remaining portion (about 20% to 30%), while the bile canaliculi and hepatic vein do not directly contribute to the blood supply.