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Physiology Misc > Gastrointestinal Hormones > Flashcards

Gastrointestinal Hormones Flashcards

1
Q

Secreted by G cells in stomach antrum

A

Gastrin

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2
Q

Increases gastric H⁺ secretion; stimulates growth of gastric mucosa

A

Gastrin

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3
Q

Secreted by S cells in duodenum

A

Secretin

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4
Q

Increases pancreatic and biliary HCO₃⁻ secretions; gastrin counter-regulatory hormone

A

Secretin

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5
Q

Secreted by I cells in duodenum and jejunum

A

Cholecystokinin

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6
Q

Stimulates gallbladder contraction and sphincter of Oddi relaxation; increases pancreatic enzyme and HCO₃⁻ secretion; inhibits gastric emptying

A

Cholecystokinin

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7
Q

Stimulus for secretion of CCK: specify type of food

A

Free fatty acids

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8
Q

Secreted by K cells in duodenum; secretion stimulated by oral glucose

A

Glucose-dependent insulinotropic peptide (GIP)

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9
Q

Increases insulin secretion; inhibits gastric emptying only above normal physiologic levels

A

Glucose-dependent insulinotropic peptide (GIP)

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10
Q

Secreted by M cells in duodenum and jejunum; secretion stimulated by fasting

A

Motilin

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11
Q

Stimulates interdigestive myoelectric complexes (to remove food in GIT before next meal)

A

Motilin

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12
Q

Neurocrine hormone from vagus nerve to G cells

A

GRP (bombesin)

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13
Q

GI hormone classified as an incretin

A

Glucose-dependent insulinotropic peptide (GIP)

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14
Q

Ghrelin inhibitor

A

Peptide YY

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15
Q

Inhibits anorexigenic neurons

A

Ghrelin

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16
Q

Stimulates anorexigenic neurons; inhibits orexigenic neurons

A

Leptin

Physiology Misc (5 decks)

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