GI Disorders Flashcards by Jannene Sebesta

Q

What 3 substances regulate transport of H+ ions by parietal cells in the stomach?

A

histamine
gastrin
acetylcholine

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Q

histamine is released by? Binds to?

A

Enterochromafin-like cells

H2 receptors

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Q

gastrin is released by? Binds to?

A

by G cells into blood stream

CCK8

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Q

gastrin is released by? Binds to?

A

postganglionic nerves m3

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Q

GERD caused by LES weakness or relaxation
What physically causes it?
Medications cause it?
Food that causes it?

A

increased pressure from overweight, obese, pregnant

meds: beta-agonists, anti-cholinergic, Alpha-adrenergic,
nitrates, calcium channel blockers, morphine, benzos

Food: caffeine, fatty foods, spicy foods, chocolate, carbonated beverages, tea.

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