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9 Cards in this Set
- Front
- Back
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gastrin
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stimulated by small peptides & amino acids in stomach, distention of stomach, vagus; inhibited by H+ in stomach and somatostatin; stimulates H+ secretion and growth of gastric mucosa
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CCK
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stimulated by small peptides, amino acids, fatty acids in duodenum; stimulates secretion of bile from gallbladder, increased pancreatic enzyme and bicarb secretion, growth of exocrine pancreas; inhibits gastric emptying
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secretin
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stimulated by H+ & fatty acids in duodenum; stimulated bicarb secretion from pancreas and gallbladder; decreases gastric H+ production
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GIP
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stimulated by fatty acids, amino acids & glucose in duodenum; increases insulin secretion; decreases gastric H+ secretion
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somatostatin
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stimulated by H+ in lumen of GI tract; inhibited by vagal stimulation; inhibits gastric H+ secretion and release of all GI hormones
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histamine
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secreted by mast cells of gastric mucosa; increases H+ secretion directly and by potentiating gastin and vagal effects
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VIP
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released from neurons in mucosa and smooth muscle of GI tract; produces relaxation of GI smooth muscle; stimulates pancreatic bicarb secretion; inhibits gastric H+ secretion
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GRP (bombesin)
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released from vagus; stimulates gastrin release
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enkephalins
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secreted from nerves in mucosa and smooth muscle of GI; stimulate contraction of smooth muscle; inhibit intestinal secretion of fluid and electrolytes
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