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Lecture 33
Digestive System II
24
Anatomy
Undergraduate 2
12/06/2010

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Term
liver location
Definition
-URQ
-just beneath diaphragm
Term
liver lobes
Definition
-right, left
-quadrate/caudate (posterior)
Term
ligamentum teres
Definition
-fibrous cord which extends from liver to umbilicus
-derived from umbilical vein of fetus
Term
liver lobule
Definition
-hepatocytes
-bile canaliculi
-central vein
-sinusoids
-portal triad
Term
hepatocytes
Definition
-glandular cuboidal cells
-arranged in "plates" or rows
Term
bile canaliculi
Definition
-small channels passing between rows of cells which transport bile secreted by liver cells
Term
central vein
Definition
-collects blood and transports to hepatic vein and onto IVC
Term
sinusoids
Definition
passageways which transport blood past hepatocytes
Term
portal triad
Definition
portal vein, hepatic artery, hepatic duct (union of canaliculi)
Term
liver blood supply
Definition
hepatic artery
hepatic portal vein
Term
flow of blood in liver
Definition
-hepatic artery/hepatic portal vein
-liver/sinusoids
-central vein
-hepatic vein
-IVC
Term
functions of liver
Definition
-synthesis/storage
-removal of toxic substances
-Kupffer cells (phagocytes)
Term
liver synthesizes/stores
Definition
bile, glycogen, blood proteins, vitamin (ADEK)
Term
composition of bile (yellowish green fluid)
Definition
-water
-cholesterol
-bile pigments
-bile salts
Term
function of bile
Definition
emulsification of fats
Term
bilirubin
Definition
-bile pigment
-breakdown product of hemoglobin
Term
pathways for secretion of bile
Definition
-canaliculi
-right/left hepatic ducts
-gall bladder (cystic duct)/small intestine (common bile duct)
Term
common bile duct
Definition
hepatic and cystic duct
Term
gall bladder location
Definition
attached to inferior posterior surface of liver
Term
gall bladder structure
Definition
-pear shaped sac
-lined with mucosa which absorbs water and contains smooth muscle to expel bile
Term
gall bladder function
Definition
concentration, storage, expels bile
Term
pancreas location
Definition
-posterior abdominal wall
-posterior stomach
-extends from spleen to duodenum
-retroperitoneal
Term
pancreas structure
Definition
-glandular organ that contains several different cell types and an elaborate duct system
-head body tail
Term
pancreas function
Definition
-exocrine-produces pancreatic enzymes which digest food in small intestine
-endocrine-insulin, glucagon
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