ZOO 3733C Lecture Notes - Lecture 32: Portal Hypertension, Chymotrypsinogen, Duodenum
Document Summary
Endocrine secretion in the islets of is by cells. All of these hormones are polypeptides secretion (bicarbonate) Secretion from acinar cells reach the duodenum through the main and accessory pancreatic ducts. This secretion is stimulated by endocrine cells of the duodenal mucosa through secretin by s cells acting on the pancreas to increase. Cho3 and cholecystokinin (cck) by i cells of duodenum acting on the pancreas to increase enzyme secretion. Pancreatic secretions contain lipase to break down to break down inactive proteases carbohydrates, (chymotrypsinogen, to break down proteins. These enzymes are activated intestine by in enterokinase trypsinogen, etc. ) amylase the small fat, and. Before entering the duodenum, the main pancreatic duct joins the common bile duct to form the hepatopancreatic duct which leads to the ampulla of vater. The ampulla of vater opens through the major duodenal papilla of the duodenum. Zollinger- ellison syndrome: a gastrin-secreting tumor of the pancreas which causes increased acid secretion, leading to peptic ulcer disease.
