1. CH 23
Anatomy of the
Liver
James F. Thompson, Ph.D.

2. Liver heaviest body organ at ~3 lbs second largest organ of the body
general features
heaviest body organ at ~3 lbs
second largest organ of the body
diverse functions

3. Liver anatomy covered in peritoneum
right lobe is larger than the left lobe
smallest caudate lobe tucked under the other two
right and left lobes are separated by the falciform ligament
attached superiorly to the diaphragm

4. Liver Histology Each lobe is divided into lobules
Functional unit of the liver is the lobule
Lobule -
hepatic cells (hepatocytes) in irregular branching plates around central vein
complex blood flow around the cords of hepatocytes
branches of the hepatic artery, hepatic portal vein and lymph vessels are found at the edge of each lobule

5. Central Vein In Hepatic Lobule
Hepatic cords separated by capillary sinusoids
Bile canaliculi within the hepatic cords

6. Portal Triad

7. Liver Cirrhosis and Jaundice

8. Liver
Biliary Tree
Hepatic ducts join the cystic duct from the gallbladder to form the common bile duct
Gallbladder stores bile
Common bile duct meets pancreatic duct at the hepatopancreatic ampulla (of Vater)
Bile empties into the duodenum to emulsify fats for more efficient digestion

9. Biliary Tree and Gall Stones

10. End CH 23 Anatomy of the Liver