G.I hormones

Question 1

CCK (Cholecystokinin) Where is it produced and what does it do?

Answer 1

Duodenum, jejunum, ileum, colon

Causes bile release from gall bladder and pancreatic enzyme release

Question 2

Secretin - Where is it produced and what does it do?

Answer 2

Duodenum

Pancreatic enzyme release

Question 3

Gastrin - Where is it produced and what does it do?

Answer 3

G Cells in stomach antrum

PC and HCL release

Question 4

Gastrin releasing hormone - Where is it produced and what does it do?

Answer 4

Vagus nerve

Activates G cells in stomach antrum

Question 5

Glucagon - Where is it produced and what does it do?

Answer 5

A cells in islets of langerhans

Increase glucose production and glycogen breakdown in the liver

Question 6

Guanyin - Where is it produced and what does it do?

Answer 6

Ileum Colon

Increases fluid absorption in colon

Question 7

Somatostatin - Where is it produced and what does it do?

Answer 7

D cells in stomach/duodenum

Delta cells of Islets of langerhans

Decrease G cell activity and Pancreatic activity and bile release

Increases GI absorption and decreases secretions

Question 8

Vasoactive Intestinal Peptide (VIP) - Where is it produced and what does it do?

Answer 8

ENS neurons

Relaxes SI muscle and increases SI and pancreatic secretions