Duke PA Physiology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What happens if you lose the enteric nervous system? | no propulsion of materials in GI tract -random contractions
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| Where does tonic inhibition occur? | sphincters
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| What does delayed emptying cause? | nausea, vomiting, bloating and heart burn
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| What is rapid emptying? | diarrhea (osmotic and secretory)
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| What is secretory diarrhea? | cholera - infection, upsets ion balance across the gut
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| What does the digestive system provide to the body? | nutrients, water and solutes
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| What are the four basic functions of the GI tract & accessory glands? | fragmentation, digestion, secretion, and absorption
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| What is osmotic diarrhea? | ex - lactose intolerant - missing lactase results in lactose being delivered to the colon, no glucose transporter in colon, so material sits in colon, pulls water into colon - diarrhea
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| Which part of the GI tract are passive conduits/ | esophagus and anus
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| Which part of the GI tract is a secretory organ? | stomach
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| Which part of the GI tract is absorptive? | intestines
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| Which type of diarrhea is isoosmotic? | all kinds of diarrhea are isoosmotic - 300mOsm
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| What is the concentration of NaCl in secretory diarrhea? | 300 mOsm
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| What is the concentration of NaCLl in osmotic diarrhea? | less than 300 mOsm - glucose adds to concentration
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| Will sever diarrhea result in metabolic acidosis or metabolic alkalosis? | metabolic acidosis
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| What is the best way to rehydrate someone who has severe diarrhea? | salt solution containing rice (polymers of glucose)
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| What does increased gastrin do to secretin? | increased secretin
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Created by:
ges13
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