Inflammation and Tumours of Pancreas Flashcards
exocrine pancreas function
acing cells secrete pancreatic enzymes
endocrine pancreas function
islets of langerhans secrete hormones into blood
islet’s of langerhan’s cells
beta
alpha
delta
F
what do beta cells secrete
insulin
what do alpha cells secrete
glucagon
what do delta cells secrete
somatostatin
what do F cell secrete
pancreatic polypeptide
how is secretion of pancreatic fluid regulated
via vagus nerve and gastrin leaves
what is secreted from acinar cells
protease
pancreatic lipase
pancreatic amylase
other enzymes
function of protease
digests polypeptides to peptides
function of pancreatic lipase
digests triglycerides into fatty acids and monoglycerides
function of pancreatic amylase
digests carbohydrate into disaccharides/monosaccharides
what is secreted from epithelial cells lining pancreatic duct
bicarbonate
water
role of bicarbonate in pancreas
neutralises acidic gastric juice
what is pancreatitis
acute inflammatory process in the pancreas
involving regional tissues and remote organs
aetiology of pancreatitis
I GET SMASHED; idiopathic gallstone ethanol (alcohol) trauma steroids mumps (+hepatitis) autoimmune scorpion bite hypercalcaemia, hyperparathyroidism, hyperlipidaemia ERCP drugs (azathorpine)
pathophysiology of pancreatitis
bile reflux theory
hyperstimulation of pancreatic acinar cells with cholecystokinin - auto digestion of the pancreas
bile reflux theory
obstruction of common bile duct/pancreatic duct causing reflux of bile into pancreas
4 stages of auto-digestion of pancreas
1. hypovolaemic shock hypocalcaemia 2. retroperitoneal haemorrhage 3. pancreatic necrosis 4. abscess formation
clinical presentation of pancreatitis
acute onset epigastric pain - very severe
nausea and vomiting
jaundice
peritonitis - severe
describe radiation of epigastric pain in pancreatitis
radiates to back
signs of pancreatitis
erythema abigne
Cullen’s sign
grey turner’s sign
elevated serum amylase