Regulation of Pancreatic Juice and Bile Secretion and Release

Question 1

1

Answer 1

Chyme entering the duodenum causes duodelanent enteroendocreine cells to release cholecystokinin (CCK) and secretin

Question 2

2

Answer 2

CCK and secretin enter the bloodstream

Question 3

3

Answer 3

Upon reaching the pancreas, CCK induces secretion of enzyme-rich pancreatic juice; secretin causes secretion of bicarbonate-rich pancreatic juice

Question 4

4

Answer 4

Secretin causes the liver to secrete more bile; CCK stimulates the gallbladder to release stored bike and the hepatopancreatic sphincter to relax (allows bike from both sources to enter the duodenum)

Question 5

5

Answer 5

Stimulation by vagal nerve fibres causes release of pancreatic juice and weak contractions of the gallbladder