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10 Cards in this Set
- Front
- Back
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action of gastrin
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increase H+ secretion, growth of gastric mucosa
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stimuli for gastrin secretion and where it is secreted from
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stimuli = phenylalanine and tryptophan in stomach lumen, stomach distention
secreted from = G cells in antrum |
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does atropine black gastrin secretion
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no (Ach is not the mediator, GRP is)
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gastrin homologue
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CCK
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stimuli for CCK release and where it is secreted from
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stimuli = peptides, amino acids, FAs, and monoglycerides
where = I cells of duodenal and jejunal mucosa |
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actions of CCK
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gallbladder contraction, Oddi relaxation, panc enzyme secretion, growth of panc, inhibition of gastric emptying (**high fat = slower gastric emptying**)
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homologue of glucagon and GIP
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secretin
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action of secretin
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HCO3- secretion, panc growth, bile production (via HCO3- secretion), inhibition of H+ secretion
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action of GIP
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insulin release, inhibition of H+ secretion
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what's unique about GIP
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it's the only one released in response to protein/FAs and carbs
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