Liver Gallbladder Biliary Tree Ryan Gutsoc Overview Liver

Liver, Gallbladder & Biliary Tree Ryan - Gutsoc

Overview

Liver - Lobes Who can name them? All lobes are functionally the same

Liver - Vasculature Has 2 blood supplies: What is the role of the hepatic artery? What is the role of the portal vein? Bloods returns to the inferior vena cava via the hepatic veins – where it then returns to the heart

Liver Vasculature as seen on a Cadaver Please see Mc. Minn’s Atlas (or any atlas) for a liver from a specimen as these cannot be shared online as per policy!

Liver – Porta Hepatis What is the porta hepatis? What structures run through it? Common hepatic duct Hepatic artery proper Hepatic portal vein From anterior to posterior: DAV

Liver – Ligaments and bare area Coronary ligaments – crown the liver, forming the bare area. Right & Left triangular ligaments – extremeties of the coronary ligaments, attach Liver to the diaphragm. Falciform Ligament – attaches Liver to anterior body wall, spearates left and right lobes Round ligament/Ligamentum teres – remnant of foetal umbilical vein, found in the free edge of the falciform ligament

Biliary System Bile is made in the liver by hepatocytes Bile gets stored in the gallbladder After meals – bile is released from gallbladder into the intestines

Biliary Tree on a Cadaver Specimen Please see Mc. Minn’s Atlas (or any atlas) for a biliary tree from a specimen as these cannot be shared online as per policy!

Gallbladder An inflamed gallbladder is called – cholecystitis Surgical removal of a gallbladder is called – cholecystectomy GALLBLADDER = CHOLECYST-

Biliary Tree Where is the sphincter of Oddi? Gallstones can become stuck anywhere along the biliary tree. If they get stuck at sphincter of Oddi, what other organ is affected? Why do patients with an obstruction appear yellow - jaundice? What is their faeces pale – steatorrheao? Why is their urine dark?

MCQ 1 Which description best suits the left and right triangular ligaments? a) They secure the liver to the anterior body wall b) They are remnants of the foetal umbilical vein c) They secure the liver to the diaphragm d) They transport bile

MCQ 2 Which of these does not travel in the Porta Hepatis a) Common Hepatic Duct b) Common Hepatic Artery c) Heptic Artery Proper d) Hepatic Portal Vein

MCQ 3 What do the Cystic Duct and the Common Hepatic Duct join to form? a) Sphincter of Oddi b) Gallbladder c) Comman Bile Duct d) Hepatopancreatic Ampulla of Vater