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Radiographic Pathology Chapter 6: Hepatobiliary System 2023/2024 ( 100% verified)
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Radiographic Pathology Chapter 6: Hepatobiliary System 2023/2024 ( 100% verified)
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Radiographic Pathology Chapter 6:Hepatobiliary System
What is the hepatobiliary system composed of? - ANSliver
gallbladder
biliary tree
(pancreas closely related and shared portion of biliary ductal system)
What is the largest internal organ in the body and is located in the right upper quadrant? -
ANSliver
What are the functions of the liver? - ANS-Produce bile
-metabolizes substances in the portal circulation
-Synthesizes substances for blood clotting
-Stores vitamin B
-Detoxifies and excretes substances
What supplies blood to the liver? - ANShepatic artery
portal vein
What is the biliary tree composed of? - ANS-right & left hepatic duct
-common hepatic duct
-cystic duct
-common bile duct
-pancreatic duct
-ampulla of vater
-sphincter of Oddi
Pear-shaped saclike structure located on the undersurface of the right lobe of the liver. -
ANSGallbladder
What's the function of the gallbladder? - ANSTo store and concentrate the bile produced by the
liver
Elongated, flat organ that is positioned obliquely across to left side of abdomen and behind
stomach - ANSpancreas
What are the functions of the pancreas? - ANSBoth endocrine and exocrine
, __________:(secreted directly into bloodstream) specialized cells called inlets of Langerhans
produce insulin and glucagon for the bloodstream for carbohydrate metabolism. -
ANSEndocrine
What cells produce glucagon? - ANSAlpha cells
What cells produce insulin? - ANSBeta cells
___________: (secreted via a duct) produces and releases digestive enzymes - ANSExocrine:
What breaks down proteins? - ANSTrypsin
What breaks down carbohydrates? - ANSAmylase
What breaks down fatty substances? - ANSLipase
What are some considerations when taking abdominal radiography? - ANS-calcifications in GB
-milk of calcium sludge
-Gas in wall or lumen of gallbladder
-gas in biliary tree
Insertion of 22ga. flexible chiba needle directly into biliary tree by puncturing the
abdominal wall - ANSPercutaneous transhepatic cholangiography (PTC)
What does percutaneous transhepatic cholangiography (PTC) distinguish? - ANSDistinguish
medical jaundice
(dysfunction) from surgical jaundice (obstruction)
-Medical: from diseased liver,GB
-Surgical: due to obstruction of biliary tree
Used to visualize nondilated
ducts, distal obstructions, patients with bleeding disorders and pancreas - ANSEndoscopic
retrograde cholangiopancreatography (ERCP)
-Used in conjunction with
sonography or CT of pancreas
What is Endoscopic retrograde cholangiopancreatography? (ERCP) - ANSVisualize biliary
system and main
pancreatic duct
-Thin catheter fed into common bile duct or
pancreatic duct from duodenal C-loop
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