GI 2 Flashcards
these are specialized folds in the small intestine that contain blood vessels and lacteals
villi
these increase surface area even more by forming the brush border
microvilli
this is the microenvironment for enzyme release and digestion/ absorption
brush border
what is one major function of the liver?
bile production
function of bile
makes fats soluble
the liver produces _______ from heme breakdown
bilirubin
what structure stores and concentrates bile?
gallbladder
what stimulates bile release from the gallbladder?
CCK and vagus nerve
what stimulates the release of CCK?
lipids in the duodenum
what are the main components of bile?
bile salts
phospholipids
cholesterol
bile pigments
this component of bile emulsifies fats
bile salts
insoluble bilirubin is bound to _______ in the blood
albumin
bilirubin is conjugated to what in the liver?
glucoronic acid
conjugated bilirubin is broken down into what 2 things in the small intestine?
urobilin- urine
stercobilin- stool
this results from abnormally high accumulation of bilirubin the blood
jaundice
indirect bilirubin is ___________
unconjugated