GI Hormones Flashcards Preview

SF4 > GI Hormones > Flashcards

Flashcards in GI Hormones Deck (19):
1

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Gastrin

Stimulates - acid secretion

G cells in antrum of stomach

Small peptides, amino acids, gastric distention, vagal stimulation

2

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CCK

Stimulates - gall bladder contraction, pancreatic enzyme secretion, pancreatic bicarbonate secretion, satiety
Inhibits - gastric emptying

I cells of duodenum and jejunum

Small peptides, AAs, FAs, CCK-RP, monitor peptide

3

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Secretin

Stimulates - pancreatic bicarbonate secretion, biliary bicarbonate production
Inhibits - gastric acid secretion

S cells in duodenum

Acid

4

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GIP

Stimulates - insulin release
Inhibits - gastric acid secretion

K cells in duodenum and jejunum

FAs, AAs, oral glucose

5

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Motilin

Stimulates - gastric and intestinal motility

duodenum and jejunum

Nerves

6

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Somatostatin

Inhibits - GI hormone release, gastric acid secretion

D cells in GI mucosa

acid

7

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Histamine

Stimulates - gastric acid secretion

ECL cells

Gastrin

8

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VIP

Relaxes GI smooth muscle
Stimulates - intestinal secretion, pancreatic secretion

GI mucosa and smooth muscle

9

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GRP

Stimulates - gastrin release

Gastric mucosa

Vagal stimulation

10

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Enkephalins

Stimulate - contraction of smooth muscle
Inhibit - intestinal secretion

GI mucosa and smooth muscle

11

Which GI hormones stimulate acid secretion

Gastrin
Histamine

12

What GI hormone is released from the antrum of the stomach

Gastrin

13

Which GI hormones inhibit gastric acid secretion

Secretin
GIP

14

Which GI hormones relax GI smooth muscle

VIP

15

Which GI hormones are going to release bicarbonate

CCK
Secretin

16

Oral glucose will result in the release of what GI hormone

GIP

17

The presence of acid will result in the release of which GI hormones

Secretin
Somatostatin

18

What affect do proteins have on CCKn

They protect CCK from degradation by trypsin

19

Which GI hormone causes GI smooth muscle contraction?

Enkephalins