Question 1

Terry takes a drug classified as a proton ^-pump inhibitor to help his ulcer heal. Proton ^-pump inhibitors block the secretion of gastric acids. Predict and explain the effects of this drug on digestion in the stomach.

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Question 2

Explain the functions of the three types of folds found in the small intestine, from largest to smallest.

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Question 3

Explain how damage to the somatic nervous system would affect the defecation reflex.

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Question 4

Summarize the influence of bile salts, cholecystokinin (CCK), and secretin on bile production and release.

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Question 5

Explain how peristalsis and segmentation in the small intestine differ.

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Question 6

Explain how small intestine motility differs during fasting and eating.

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Question 7

List the three segments, or divisions, of the small intestine in order, from the proximal to the distal end.

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Question 8

Discuss the influence of cholecystokinin (CCK) and secretin on the acinar cells of the pancreas.

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Question 9

Based on your knowledge of splanchnic circulation, determine why a patient who has been diagnosed with colon cancer may need to be checked for liver cancer.

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Question 10

Trace the pathway of feces through the portions of the large intestine from the ileocecal valve to the anal canal.

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Question 11

Trace the pathway of bile from the gallbladder to the duodenum.

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Question 12

Discuss emulsification and indicate why it is important.

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Question 13

Summarize the defecation reflex.

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Question 14

A patient with Crohn's disease recently had his ileum removed. His doctor has monitored his vitamin B12 levels; vitamin B12 binds intrinsic factor in the stomach. Determine why levels of this vitamin are a
concern.

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Question 15

Explain why water is a key component of enzymatic hydrolysis.

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Quiz 22: The Digestive System

Terry takes a drug classified as a proton -pump inhibitor to help his ulcer heal. Proton -pump inhibitors block the secretion of gastric acids. Predict and explain the effects of this drug on digestion in the stomach.