Hormone

Question 1

Where is CCK produced?

Answer 1

I-cells of the duodenum and jejunum

Question 2

What does CCK do?

Answer 2

Stimulates gallbladder contraction + pancreatic enzyme secretion; slows gastric emptying; promotes satiety

Question 3

Where is secretin produced?

Answer 3

S-cells of the duodenum

Question 4

What does secretin do?

Answer 4

Stimulates pancreatic bicarbonate secretion; decreases gastric acid secretion; increases bile secretion

Question 5

Where is gastrin produced?

Answer 5

G-cells of the antrum of the stomach and duodenum

Question 6

What does gastrin do?

Answer 6

Increases gastric acid (HCl) secretion; stimulates gastric mucosal growth + motility

Question 7

Where is leptin produced?

Answer 7

Adipose tissue

Question 8

What does leptin do?

Answer 8

Suppresses appetite by acting on hypothalamus; signals energy sufficiency

Question 9

Where is ghrelin produced?

Answer 9

Stomach (especially during fasting)

Question 10

What does ghrelin do?

Answer 10

Stimulates hunger; increases gastric motility; promotes growth hormone secretion