liver Flashcards
biliary anatomy: recall the anatomy of the biliary system and embryological origins
where does the biliary tree start
millions of bile canaliculi adjacent to hepatocytes
what do canaliculi drain into
small ductules, then into small bile ducts
what do small bile ducts coalesce to form
larger bile ducts for each liver segment
what do larger bile ducts merge to form
right and left hepatic ducts
what do right and left hepatic ducts converge to form
common hepatic duct
what is connected to common hepatic duct
cystic duct
function of cystic duct
connect gall bladder to biliary tree
what do the common hepatic duct and cystic duct merge to form
common bile duct
where does the common bile duct extend towards
duodenum
what joins the common bile duct distally, and what does this form
pancreatic duct, forming ampulla of Vater
where does the ampulla of Vater open up into medial wall of duodenum
duodenal papilla
when does the gut tube start to develop
day 29-34
what 2 layers of germline tissue form gut tube
endoderm (inner layer), mesoderm (outer layer)
function of mesoderm
wraps around to provide structural and functional support
fate of endoderm
liver develops from foregut endoderm; mucosal epithelium, mucosal glands, submucosal glands
