Liver Structure and Function Flashcards
What are the four lobes of the liver
Riht, left,caudate,quadrate
What is the nerve supply of the liver
The hepatic plexus which contains sympathetic (from the coeliac plexus) and parasympathetic (from the vagus nerve) all via porta on inferior surface
The caudate lobe is located:
on the visceral surface between the IVC and a fossa formed by ligamentum venosum
The quadrate lobe is located:
between gallbladder and a fossa formed by the ligamentum teres
What does the porta hepatis not transmit
Hepatic veins
What is the liver covered by
A connective tissue (Glisson’s) capsule and visceral peritoneum except at the bare area (small area on diaphragmatic surface surrounded by coronary ligament)
What divides liver hepatocytes into hexagonal lobules
Septa
What is the portal triad
The hepatic artery,portal vein and hepatic duct. They’re located at the corner of each hexagonal lobule
What do the central veins branch to
Hepatic veins that branch into the IVC
What are hepatic cords made out of
Hepatocytes
What are the blood channels bw hepatic cords
Hepatic sinusoids
Where do cannaliculi lead to
Hepatic ducts
What is the alimentary role of liver?
Production and secretion of bile
What are the six components of bile
Bile acids Lecithin Cholesterol Bile pigments (Bilrubin) Toxic metals Bicarbonate (Secreted by duct cells) (All of the rest secreted by hepatocytes)
What are bile pigments
Breakdown products of haemoglobin from old/damaged erythrocytes
