Biliary Tree Flashcards
Bile is produced by the _______ and is subsequently transported to the duodenum by the biliary tract.
Liver - bile is produced by the liver and transported by the biliary tract into the gallbladder and duodenum.
The gallbladders wall should measure less than how many millimeters in diameter?
3 millimeters
The common bile duck is formed by the confluence of the ________ & _________ ducts.
Cystic, Common Hepatic The gallbladder neck connects directly to the cystic duct, which is the gallbladders conduit to the rest of the biliary tract. The gallbladders cystic duct joins the livers common hepatic duct. The confluence of the common Hepatic duct and cystic duct forms the common bile duct, which courses inferiorly and empties into the duodenum.
The portal triad consists of branches from which structures?
Portal vein, hepatic artery, & common bile duct
A small out-pouching along the gallbladder neck is termed what?
Hartmann’s pouch
What is produced when the fundus of the gallbladder folds on itself?
Phygian cap
Biliary duct, hepatic artery‘s, and portal vein all have ________ walls whereas hepatic veins do not.
Echogenic
The Intrahepatic Ducts travel with…….
Travels with the Portal vein
The Common Hepatic Duct
- Measures?*
- Is formed by the union of…….*
5mm
Formed by the union of the Right and left hepatic ducts
Travels inferrior to join the cystic duct and becomes the common bile duct
The common bile dict
- Sonographic appearance*
- Measures?*
- Formd by the union of……*
Anechoic, echogenic walls
6mm+1mm for every decade of life after 60 years of age
Formed by the union of the common hepatic duct and the cystic duct
The cystic Duct
Leaves the GB and joins with what?
Leave the GB and joins the Common Hepatic Duct
The Spiral Valves of Heister are What, located where and can potentialy cause shadowing.
Small valves within the Cystic Duct that allow bile movement in and out of the cystic duct
Ampulla of Vater
Where the CBD joins the pancreatic duct
OPENING
Sphincter of Oddi
Fibers that surround the CBD and pancreatic duct at the ampulla of vater
Gallbladder
Measurments
Sonographic appearance
Neck, Body & Fundud
The Wall of the GB should not measure > 3mm
Thin echogenic wall, Lumen is devoid of echoes (anicoic) and ETT
Neck; Narrowest, most superior & posterior - Hartmans pouch is located in the neck close to the cystic duct.
Body; Mid portion of the GB
Fundus; Widest, most anterior, angled to the right
