biological basis: GI system
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exam 3
Last updated 1:56 PM on 3/31/26
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9 Terms
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salivary glands
provide moisture
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what do the enzymes in saliva do
start digestion of starch
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esophagus
transports food to stomach
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what prevents regurgitaiton
sphincter muscle between esophagus and stomach
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stomach
moistens food
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what does the stomach secrete and what does it do
hydrochloric acid and enzymes to digest
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pancreas
manage bgl (insulin/glucagon)
digest (enzymes)
neutralizes pH (alkaline sol)
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liver
secretes bile so large droplets of fat → small droplets
metabolizing enzymes
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first pass effect
drugs and other chemicals ingested orally go to liver via portal vein before reaching other tissues
small intestine and liver metabolize significant fraction of drugs/chemicals
extent of
