GI ML: 2

Question 1

What are the four gastrointestinal hormones

Answer 1

gastrin, CCK, secretin, GIP

Question 2

What kind of hormone are the gastrointestinal hormones?

Answer 2

peptide

Question 3

What is the site of production of gastrin

Answer 3

antrum of stomach

Question 4

What hormones are produced in the small intestine

Answer 4

CCK, Secretin, GIP

Question 5

When is gastrin released

Answer 5

amino acids and peptides in stomach and parasymo nerves

Question 6

What is CCK released

Answer 6

amino acids and fatty acids in small intestine

Question 7

When is secretin released

Answer 7

acid in small intestine

Question 8

What is GIP released

Answer 8

glucose and fat in small intestine

Question 9

What factors inhibit gastrin

Answer 9

acid in stomach and somatostatn

Question 10

What does gastrin stimulate

Answer 10

acid secretion and motility in stomach and stimulates ileum for motility in small intestinf and stimulates mass movement in LI

Question 11

What does CCK inhibit

Answer 11

acid secretion and motility in stomach, spinchter of oddi (relaxes)

Question 12

What does CCK stimulate

Answer 12

gallbladder, enzyme secretion in pancreas, increases affects of secretins actions in bicarb secretion in pancires and secretions actions on bile ducts in liver

Question 13

What does secretin inhibit

Answer 13

acid secretion and motility in stomach

Question 14

What does secretin stimulate

Answer 14

bile ducts in liver and bicarb secretion in pancreas and increased affects of CCK on enzyme secretion in pancreas

Question 15

What is special about GIP

Answer 15

it is a feed forward hormone so it goes straight to pancreas and stimulates insulin and plasma so you dont get a big glucose spike

Question 16

What are the 3 phases of the gastrointestinal control and where the stimulus originates

Answer 16

cephalic ( in the head)
gastric (ingested material in stomach)
intestinal (presence of chyme in SI)

Question 17

What is cephalic stimulates by

Answer 17

sight, smell, taste, chewing, and emotional states

Question 18

How is cephalic feed forward

Answer 18

increases secretory and contractile acitivty mainly by parasymp

Question 19

What is gastric stimulated by

Answer 19

strecth, acidity, amino acids, and peptides

Question 20

What is gastric phase mediated by

Answer 20

short and long reflexes
hormone gastrin

Question 21

What is intestinal stimulated by

Answer 21

stretch, acidity, osmolarity, and digestive products

Question 22

What is the intestinal phase mediated by

Answer 22

secretin
CCK
GIP