GI hormones: Hamra 2011. GI Physiologiy
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| show | gastrin is secreted by the G cells
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| show | antrum of the stomach, duodenum and jejunum
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| what stimulates the release of gastrin? | show 🗑
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| what effect does gastrin have? | show 🗑
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| what receptor does gastrin bind to on ECL cells? what effect does this have? | show 🗑
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| besides gastrin, what else stimulates ECL and Parietal cells? | show 🗑
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| show | ZE is characterized by gastrin secreting tumors that come from the pancreas that cause ulcers and do not permit the pancreatic enzymes to fxn. the first sign of this would be increased fat in the feces.
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| show | yes
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| where does secretin come from? | show 🗑
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| show | H+
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| show | it will cause the release of Bicarb to neutralize the increased acidity of the GI as well as inhibiting the parietal and G-cells
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| show | nature's antacid
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| show | it comes form I-cells
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| show | the I-cells that secrete CCK are located in the duodenum
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| what stimulates CCK's release? | show 🗑
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| show | enzymes from pancreas, bile from GB, inhibits parietal cells and inhibits gastric emptying
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| does CCK have a trophc effect on the pancreas? | show 🗑
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| show | bicarb
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| show | yes
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| show | increased H+
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| show | D-cells in the stomach, duodenum and pancreas
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| what effect does somatostatin have? | show 🗑
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| where does IF come from? | show 🗑
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| show | it comes from K-cells in the jejunum
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| show | carbs/ fats/ proteins..... GIP = gluton
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| define an enterogastone | show 🗑
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| what is its primary function? | show 🗑
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| what did GIP stand for? what does it stand for now? | show 🗑
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| where is motilin's site of release? | show 🗑
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| in what aspect of the GI does it function? | show 🗑
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| show | fasting... it is released everu 90 mins
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| what stimulatory effects does VIP have? | show 🗑
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| show | it inhibits gastric secretion and causes relaxation of GI smooth muscle
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| show | Vagus; stimulates release of gastrin from g-cells
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| these two neurocrines decrease motility and and intestinal secretion... | show 🗑
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| this neurocrin increases blood glucose by stimulating glycogenolysis and glucagon release and inhibiting insulin release | show 🗑
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| which two molecules mentioned here had a paracrine mode of action? what are they're functions? | show 🗑
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| which candidate hormone causes a decrease in bicard and enzyme secretion from the pancreas? what releases it? | show 🗑
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| which candidate hormone causes a decreas in gastric secretion and gastric emptying? what releases it? | show 🗑
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| show | enteroglucagon.... it is released by fats and hexose
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| show | GLP-1... it stimulates the release of insulin and functions in ileal break
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Created by:
cgreco