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Exam 22: The Digestive System

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Question 31

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Explain how peristalsis and segmentation in the small intestine differ.

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As with other regions of the alimentary ...

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Question 32

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What cells compose the liver lobules?

A) hepatocytes
B) chief cells
C) acinar cells
D) parietal cells

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Question 33

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Which cells release hydrochloric acid (HCl) into the stomach?

Summarize the defecation reflex.

Explain how changes in position of the glottis and larynx during swallowing (deglutition)prevent the aspiration of food into the larynx.

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

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

Summarize the effects of the cephalic phase,gastric phase,and intestinal phase on acid secretion by the stomach.

Which of the following does NOT transport bile?

A patient in the emergency department sustained a knife wound to the abdomen.The wound extended through the membranes surrounding the large intestine,into the layers of the large intestine,and into the lumen of the large intestine.Discuss the membranes and layers that were penetrated,from superficial (outermost)to deep (innermost).

Emulsification requires:

Chief cells release:

What is the final segment of the small intestine?

The digestion of which food group may be affected by an inadequate amount of stomach acid?

Jerry had an ulcer affecting the innermost epithelium of the stomach facing the lumen.Which layer of the alimentary canal was ulcerated?

In which organ is chyme mixed with pancreatic juice and bile?

How is fructose absorbed across the apical enterocyte membrane?

From large to small,the types of folds associated with the small intestine are circular folds,villi,and microvilli.

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

Explain why water is a key component of enzymatic hydrolysis.