GI Motility (In class)- Karius

Question 0

what initiates peristalsis in the esophagus?

Answer 0

presence of bolus

Question 1

What is a risk during the pharyngeal phase of swallowing?

Answer 1

aspiration

Question 2

what is the purpose of secondary peristalsis?

Answer 2

to clean-up debris

Question 3

UES big job?

Answer 3

to keep food bolus going down

Question 4

What is the propulsive movement of the stomach?

Answer 4

peristalsis

Question 5

mixing motion of stomach?

Answer 5

reteropulsion

Question 6

what can increase gastric emptying?

Answer 6

gastrin; stretch

Question 7

where do factors that decrease gastric emptying arise?

Answer 7

duodenum

Question 8

What hormones decrease gastric emptying?

Answer 8

CCK, secretin

Question 9

mixing motion of SI?

Answer 9

segmentation

Question 10

what decreases motility of SI?

Answer 10

secretin and glucagon

Question 11

peristaltic rush is the result of what?

Answer 11

irritation within SI; may run length of SI; clears irritant= diarrhea

Question 12

migrating motor complex occurs when? where does it start? purpose?

Answer 12

fasting; 1.5-2 hour intervals, matches motilin; starts in stomach; prevents enzymes from acting on mucosa

Question 13

purpose of ileocecal valve?

Answer 13

prevents backflow

Question 14

mixing motion in large intestine?

Answer 14

haustrations

Question 15

difference between small and large intestine?

Answer 15

contraction much stronger in large intestine

Question 16

defecation what 3 controls?

Answer 16

local, PSNS, and voluntary