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
