Final Exam GI Physiology: Exocrine Pancreas Flashcards Preview

RUSVM Physiology II > Final Exam GI Physiology: Exocrine Pancreas > Flashcards

Flashcards in Final Exam GI Physiology: Exocrine Pancreas Deck (11):
1

What are the functions of the pancreas?

To dilute and buffer chyme to create an optimal pH

Hydrolyze proteins, carbs, lipids, and nucleic acids

2

What are the products of acinar cells?

Proteases- Trypsinogen, chymotrypsin, procarboxypeptidase
Pancreatic amylase
Pancreatic lipase

Less important: Cholesterolesterase, phospholipase, ribonuclease, deoxyribonuclease, electrolytes, GIF

3

What cells increase the HCO3- content of pancreatic fluid?

Ductular cells

4

What is acid tide?

Refers to the plasma leaving the pancreas

5

What do ductular cells do with Na+ and K+?

They reabsorb Na+ and secrete K+

6

The cephalic, gastric, and intestinal phases of the pancreas are all ___________.

Stimulatory

7

What controls the cephalic phase of pancreatic acinar cell secretion?

Stimuli: Sensory, Thought, Swallowing

8

What controls the gastric phase of pancreatic acinar cell secretion?

Gastrin and vagovagal reflex

9

What controls the intestinal phase of pancreatic acinar cell secretion?

CCK!! and secretin

10

What stimulates the vagovagal reflex?

H+, fat breakdown products, peptides, AAs

11

What control pancreatic ductular cell secretion?

ACh, secretin, and CCK all INCREASE the secretion