the biliary system - lecture video

Question 1

what is the biliary system used for?

Answer 1

a way to allow liver to get bile it produces from hepatocytes into the GI tract - 2nd part of duodenum

Question 2

what does the biliary system contain?

Answer 2

ducts, gallbladder

Question 3

where does the bile produced in bile-dependent pathway drain into?

Answer 3

from hepatocytes into bile cannuliculi
increase in size of biliary ducts, until R & left side of liver –> main ducts (R & L hepatic ducts) - drain functional liver –> common hepatic duct

Question 4

where is bile stored? when? why?

Answer 4

bile produced continuously
not needed between meals
stored in gallbladder - dehydrated

Question 5

what connects the gallbladder to common bile duct?

Answer 5

cystic duct

Question 6

what is the sphincter of oddi?

Answer 6

at major duodenal papillae

determines what enters 2nd section of duodenum

Question 7

what happens during meal times?

Answer 7

bile is discharged from gallbladder to 2nd part of duodenum - through gallbladder contraction
(Common hepatic duct, common bile duct –> major duodenal papillae)