Flashcards in Biliary Tract and Upper GI Deck (111)
Radiographic examination of the biliary system involves studying the
manufacture, transport, and storage of bile.
Large wedge-shaped organ
Located inferior to the diaphragm.
Largest solid organ
Occupies most of RUQ and extends to LUQ
Well protected by rib cage.
Describe the upper border of the liver:
Widest part 8 to 9”
Convex to conform to diaphragm
Describe the right border of the liver:
Largest vertical dimension 6-7”
10th rib to just above R. Kidney
Distal end of gall bladder extends:
below anterior, inferior margin of liver
Remainder of GB (when discussing the distal end) lies
inferior and posterior surface of liver
The right lobe and left lobe of the liver are divided by:
the falciform ligament.
The quadrate lobe and caudate lobe are located:
on medial aspect of R. Lobe of the liver.
The quadrate lobe is located:
Between GB and falciform ligament
The caudate lobe is located:
Posterior to quadrate lobe
Hilum of liver (porta hepatitis) is located:
between the 2 minor lobes
The function of the liver that is most applicable to radiographic study is:
the production of bile
The liver secretes _________of bile per day
800 to 1000 ml (≈ 1 quart)
The major function of bile is:
to aid in the digestion of fats by emulsifying fat globules and the absorption of fat following its digestion.
Bile is a liquid substance composed mainly of
bile salts, bile pigments, cholesterol and water.
Bile pigments are responsible for
the yellow color of bile.
Bile salts facilitate
the absorption of fats.
If bile contains either insufficient bile salts or excessive cholesterol,
the cholesterol may crystallize to form gallstones.
As gallstones grow in size and number, may cause
minimal, intermittent, or complete obstruction of the flow of bile from the gallbladder into the duodenum.
Bile formed in liver and travels to
R&L hepatic ducts
Hepatic ducts join to form
common hepatic duct
Bile is carried to gallbladder by _____ for temporary storage in gallbladder or may be secreted directly into duodenum by way of ______ which is joined by _________.
cystic duct, common bile duct, pancreatic duct
How big is the gall bladder and how much does it hold?
7 to 10 cm (3-4”) long
Holds about 30 to 40 mL bile
What are the three parts of the gall bladder?
Broad distal end
Narrow proximal end
Continues as cystic duct
How long is the cystic duct?
3 to 4 cm long
What is the function of the spiral valve?
to prevent distention or collapse of cystic duct.
What and where is the spiral valve?
The spiral valve is folds within the cystic duct.
The three primary functions of the gallbladder are
(1)store and (2)concentrate bile, and to (3)contract when stimulated.
If bile is not needed for digestive purposes, it is:
stored for future use in the gallbladder.