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Digestive Quiz

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1. phases in regulation of gastric function




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2. gastric glands (of stomach) secretes...




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3. acetylcholine




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4. carb absorption




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5. GI tract stimuli=




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6. bile made of...




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7. absorption




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8. submucosa




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9. GI tract effects=




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10. microvilli




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11. secrete paracrine factors and hormone GASTRIN (G-cells); secretions= HORMONES (gastrin= most important hormone)




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12. serosa, muscularis externa, submucosa, mucosa




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13. last 60% of small intestine, thinner less muscular & vascular; lots of LYMPHATIC NODULES (=PEYER PATCHES), contains villi & microvilli; lacteal, absorption of LIPIDS




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14. =enzymes that digest proteins; begin work in stomach @ pH 1.5- 3.5; pepsin digests 10-15% of dietary protein --> shorter peptides and some free amino acids; pancreatic & brush border enzymes reduce oligopeptides --> amino acids




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15. secrete thin fluid rich in amylase and electrolytes, Stimulated by parasympathetic NS




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16. absorbing water and consolidating indigestibles into feces




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17. populate large intestine: 800 species of bacteria; ferment undigested carbohydrates, help in synthesis of vitamin B and K




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18. Receives and MIXES chyme, pancreatic juice, and bile, Emulsify fats (via bile acids), neutralize acids, pancreatic enzymes take over job of chemical digestion




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19. glucose, amino acids, iron, vitamins, and other nutrients for metabolism or storage




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20. found throughout gastric glands, high turnover of cells





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