Karius - GI Phys Review

Question 1

difference btwn retching and vomiting

Answer 1

UES is open in vomiting

Question 2

no retching, sudden spasm of everything

Answer 2

projectile vomiting

Question 3

substance P binds to NK-1 receptor in SI

Answer 3

peristaltic rush

Question 4

neurokinin B binds to NK3 receptors in LI

Answer 4

ultrapropulsive event

Question 5

what regions of the brain are directly involved in producing satiety

Answer 5

ventromedial hypothalamic nucleus

Question 6

what regions of the brain are ass’d with the control of metabolism

Answer 6

dorsomedial hypothalamic nucleus

Question 7

orexin A

Answer 7

hunger

Question 8

distention and CCK

Answer 8

satiety

Question 9

ghrelin

Answer 9

hungry - btwn meals

Question 10

neruopeptide Y

Answer 10

hunger

Question 11

normal trigger for production of bile salts/acids

Answer 11

return of bile salts/acids to liver

Question 12

contration of gallbladder and satiety

Answer 12

CCK

Question 13

• triggered by low pH in lumen

- causes bicarb secretion from pancreas to liver

Answer 13

secretin

Question 14

causes secretion of pancreatic enzymes

Answer 14

CCK

Question 15

wave of relaxation that precedes a peristaltic wave in the duodenum causes relaxation of what?

Answer 15

hepatopancreatic sphincter (sphincter of oddi)

Question 16

flattened villi ass’d with what kind of diarrhea?

Answer 16

inflammatory

Question 17

activation of gastric mechanoreceptors by distention

Answer 17

vomiting

Question 18

pharngeal phase of swallow controlled by

Answer 18

nucleus of the solitary tract

Question 19

major inhibitory NT of GI motility

Answer 19

NO

Question 20

• reduction in gastric acid secretion

- increase in secretion of gastric mucous

Answer 20

PGE2

Question 21

macrocytic anemia

Answer 21

B12 def

Question 22

microcytic anemia

Answer 22

Fe def

Question 23

strong wave of peristalsis hat forces chyme through pyloric sphincter

Answer 23

pyloric pump

Question 24

• decrease gastric acid and pepsinogen secretion
• decreases pancreatic and SI fluid secretion
• decreases gallbladder cont
• dec insulin and glucagon release

Answer 24

somatostatin