GI hormones

Question 1

Gastrin produced by

Answer 1

G cells in stomach

Question 2

Gastrin function (3)

Answer 2

Stimulates parietal cells to produce HCl and release of pepsinogen from chief cells / stimulates bile and pancreatic enzyme secretion

Question 3

Triggers of gastrin release

Answer 3

Anticipation of eating / distension of stomach / pH of stomach increasing

Question 4

Production of gastrin slowed by

Answer 4

Somatostatin

Question 5

Somatostatin secreted by

Answer 5

D cells

Question 6

Zollinger-Ellison syndrome

Answer 6

Gastrin-secreting tumours

Question 7

Stimulates CCK

Answer 7

Presence of fatty acids in chyme

Question 8

Functions of CCK

Answer 8

Stimulates gallbladder contraction and release of pancreatic enzymes,

Question 9

Inhibition of CCK

Answer 9

Somatostatin, trypsin, pancreatic polypeptide

Question 10

Secretin released in intestinal lumen in response to

Answer 10

Low pH

Question 11

Secretin action

Answer 11

Bicarbonate rich solution release

Question 12

Release of CCK triggered by

Answer 12

Fat in chyme

Question 13

Pepsinogen released from

Answer 13

Chief cells

Question 14

Trigger of somatostatin release

Answer 14

Low pH

Question 15

Motilin

Answer 15

Stimulates migrating motor complex