Flashcards in Final Exam GI Physiology: Exocrine Pancreas Deck (11)
What are the functions of the pancreas?
To dilute and buffer chyme to create an optimal pH
Hydrolyze proteins, carbs, lipids, and nucleic acids
What are the products of acinar cells?
Proteases- Trypsinogen, chymotrypsin, procarboxypeptidase
Less important: Cholesterolesterase, phospholipase, ribonuclease, deoxyribonuclease, electrolytes, GIF
What cells increase the HCO3- content of pancreatic fluid?
What is acid tide?
Refers to the plasma leaving the pancreas
What do ductular cells do with Na+ and K+?
They reabsorb Na+ and secrete K+
The cephalic, gastric, and intestinal phases of the pancreas are all ___________.
What controls the cephalic phase of pancreatic acinar cell secretion?
Stimuli: Sensory, Thought, Swallowing
What controls the gastric phase of pancreatic acinar cell secretion?
Gastrin and vagovagal reflex
What controls the intestinal phase of pancreatic acinar cell secretion?
CCK!! and secretin
What stimulates the vagovagal reflex?
H+, fat breakdown products, peptides, AAs