pancreatic Flashcards
basolateral cells of panc have R for
CCK
NT- GRP, Vip, ACH
ductules
large volume secretions that bring pH close to normal in order to
- inactivate pepsin
- increase solubility of fatty and bile acids
- block mucosal damage
- optimize pancraetic ad BB enzyeme fx
regulators of acinus
endo: CCK, secretin
neuroendocrine: Ach, Grp, vip, subs p
regulators of duct
scretin
ach
pathway of food
food–>i cells–> cck–>acinus–>digestive enzymes
duodenal acidity pathway
–>S cells–>secretin–>duct–>HCO3- and water
CCK mech
no receptors in acinus
stimulate vagal afferents–> basal ganglia–>vagal efferents–>pancreatic paraS gang–>ach, vip, grp–>acinar cells–>ezyme–>digest food
secretin mceh
h+ secretion–>direct and indirect effects on acinar cells–>HCO3- ad h20
enterokiase
on duo enterocytes
claeves trypsinogen–>trypsin
acidic pH inhibits trypsin
lack of inh genes
pancreatitis
grey turnre sign
ecchymoisis on 1/both flanks
cullen sign
ecchymoisis periumilical region
serum ca in panc
increase lipase–>desroy fat–>sequeser ca
atlanta criteria
abdominal distention consistent w/ acute pancreatitis
increase amylase/lipase >3x normal
+ changes on CT
gallstones do not lead o
chronic pancreatitis