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3 Cards in this Set
- Front
- Back
Gastrin
Site: Stimulus: Action: |
Secreted from: G-cells
Stimulus: peptides and amino acids in the stomach, stomach distension, vagal stimulation through Gastric-Releasing-Peptide neurotransmitter Acts on: parietal cells to stimulate H+ secretion, stimulates growth of gastric mucosa |
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Cholecystokinin (CCK)
Site: Stimulus: Action: |
Site: I-cells in the duodenum and jejunum
Stimulus: small peptides and amino acids in small intestine, fatty acids Action: Pancreatic enzyme secretion Pancreatic HCO3- secretion Stimulates contraction of the gallbladder and sphincter of Oddi Inhibits gastric emptying |
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Secretin
Site: Stimulus: Action: |
Site:S-cells of duodenum
Stimulus: acid in the duodenum fatty acids in the duodenum Action: increase pancreas bicarb secretion increase biliary bicarb secretion decrease gastric H+ secretion |