1 - Pancreas Flashcards
Does the dog or the cat have fused bile duct
Cat
Acinar cells synthesize
Inactive enzymes and store them in zymogen granules
Acute pancreatitis
Inflammatory disease characterized by inflammatory cell infiltration of the exocrine pancreas, edema, and necrosis
What are some possible risk factors in dogs with AP
- hypovolemia
- nutrition
-hyperlipoproteinemia
-endocrine conditions
How does pancreatitis cause hypovolemia
Plasma loss into peri pancreatic tissues and peritoneal cavity, pooling of fluid in lumen of gut due to ileus, dehydration from vomiting, diarrhea and lack of intake
How does pancreatitis cause peritonitis
Leakage of pancreatic enzymes into peritoneal cavity cause local inflammation and increase vascular permeability
What cells synthesize zygomens
Acinar cells
Zygomen granules are segregated
In the lumen of the rough ER
When are the zygomen granules activated
Duodenum - small intestines
Plasma a - macroglobulins bind proteases to enable
Macrophage uptake
What secretes juice into the duodenum
Exocrine pancreas
The initial food response is
Initial phase rich in enzymes
The second food response is
Rich in bicarbonate
Food related secretion is due to what two things
Cephalic stimulation and gastric and intestinal stimulation
What pancreatic enzymes are present at low concentration in teh plasma of normal animals
Amylase, lipase, and trypsin
Acute pancreatitis is recognized more often in
Dogs
Acute pancreatitis
An inflammatory disease characterized by inflammatory cell infiltration of the exocrin pancreas, edema, and necrosis associated with acute onset of a wide range of clinical signs
Most commonly pancreatitis is caused by the auto digestion of the pancreas due to premature activation of digestive zyogmens where
Within the acinar cells
Alpha cells secrete
Glucagon
B cells secrete
Insulin
D cells secrete
Somastatin
What activates trypsinogen into trypsin
Enterokinase
Trypsin becomes activated in what type of pH
Low
What does the body do to keep the pH high to prevent activation of trypsin
NaHCO3