Flashcards in Gastric motility and Pancreatic function Deck (15):
What generates gastric peristaltic waves?
What do slow waves produce?
Spontaneous depolarisation/ repolarisation
What determines the strength of contraction?
Number of action potentials
What effect does gastrin have on contraction?
What type of glands secrete bicarbonate
What will acid in the duodenum trigger?
Release of secretin from S cells cause HCO3 secretions
What are the 3 parts of the pancreas?
What are the Islets of Langerhans?
Cells that produce insulin, glucagon and somatostatin
What does somatostatin control?
Secretion of insulin and glucagon
What are the functions of the exocrine pancreas?
Secretion of bicarbonate by duct cells
Secretion of digestive enzymes by acing cells
What are zymogens?
Inactive enzymes which prevent autodigetion of pancreas
What stimulates bicarbonate secretions?
When is secretin released
Response to acid in the duodenum
What stimulates zymogen secretion?