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Flashcards in GI Motility (In class)- Karius Deck (17)
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What is a risk during the pharyngeal phase of swallowing?

aspiration

1

what initiates peristalsis in the esophagus?

presence of bolus

2

what is the purpose of secondary peristalsis?

to clean-up debris

3

UES big job?

to keep food bolus going down

4

What is the propulsive movement of the stomach?

peristalsis

5

mixing motion of stomach?

reteropulsion

6

what can increase gastric emptying?

gastrin; stretch

7

where do factors that decrease gastric emptying arise?

duodenum

8

What hormones decrease gastric emptying?

CCK, secretin

9

mixing motion of SI?

segmentation

10

what decreases motility of SI?

secretin and glucagon

11

peristaltic rush is the result of what?

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

12

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

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

13

purpose of ileocecal valve?

prevents backflow

14

mixing motion in large intestine?

haustrations

15

difference between small and large intestine?

contraction much stronger in large intestine

16

defecation what 3 controls?

local, PSNS, and voluntary