Podcast
Questions and Answers
Which blood vessel delivers approximately 25% of the blood supply to the liver?
Which blood vessel delivers approximately 25% of the blood supply to the liver?
- Portal vein
- Celiac axis
- Splenic artery
- Hepatic artery (correct)
Which blood vessel delivers approximately 75% of the blood supply to the liver?
Which blood vessel delivers approximately 75% of the blood supply to the liver?
- Hepatic artery
- Splenic artery
- Celiac axis
- Portal vein (correct)
What is the most common hepatic arterial variant?
What is the most common hepatic arterial variant?
- Gastroduodenal artery
- Splenic artery
- Accessory right hepatic artery (correct)
- Superior mesenteric artery
Which structure lies anteriorly in the hepatoduodenal ligament to the left of the common bile duct?
Which structure lies anteriorly in the hepatoduodenal ligament to the left of the common bile duct?
In how many cases does the right hepatic artery pass deep and posterior to the common bile duct?
In how many cases does the right hepatic artery pass deep and posterior to the common bile duct?
What is the usual origin of the cystic artery feeding the gallbladder?
What is the usual origin of the cystic artery feeding the gallbladder?
Study Notes
Blood Supply to the Liver
- The hepatic portal vein delivers approximately 75% of the blood supply to the liver.
- The hepatic artery delivers approximately 25% of the blood supply to the liver.
Hepatic Arterial Variants
- The most common hepatic arterial variant is the right hepatic artery arising from the superior mesenteric artery.
Structures in the Hepatoduodenal Ligament
- The hepatic artery lies anteriorly in the hepatoduodenal ligament to the left of the common bile duct.
Right Hepatic Artery and Common Bile Duct
- In approximately 80% of cases, the right hepatic artery passes anteriorly and to the right of the common bile duct.
- In 20% of cases, the right hepatic artery passes deep and posterior to the common bile duct.
Cystic Artery Origin
- The cystic artery, which feeds the gallbladder, usually arises from the right hepatic artery.
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Description
Test your knowledge about the dual blood supply of the liver and its arteries with this quiz. Learn about the hepatic artery, portal vein, and their contributions to liver function.
