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Exam 16: The Digestive System

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Question 101

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The parietal cells secrete both pepsinogen and intrinsic factor.

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Question 102

Multiple Choice

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Gastric mixing is

A) primarily in the body of the stomach
B) a result of the stomach's contents being tumbled back and forth in the fundus
C) able to combine food and gastric secretions to form a liquid known as chyme
D) both a and b
E) all of the above

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Question 103

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Indicate which hormone(s) is being described by writing the appropriate letter in the blank using the following answer code. a.secretin and CCK b.secretin c.CCK d.gastrin -Stimulate(s) the pancreatic acinar cells

Match gastric cell with correct characteristic. a.chief cells b.parietal cells c.mucous cells d.G cells of PGA -Secrete HCl

Indicate which hormone(s) is being described by writing the appropriate letter in the blank using the following answer code. a.secretin and CCK b.secretin c.CCK d.gastrin -Secreted by the small intestine

____________________ cells are the resident macrophages of the liver.

Match the following statements with all appropriate organ number(s).Some numbers may be used more than once. ________Secretes harmanes that inhibit the stamach __________Synthesizes bile __________Contans parietal and chef cells ___________All argans that produce an enryme that hydralyzes starch ____________Experiences mess movement ____________Thee structures atteched to the cecum _____________Cantains crypts of Lieberkibn ____________Stares a substance needed for fat emulsification _____________Stretching this initiztes the defecation reflex _____________Exgleriences 5epmentation ____________Stretching this initiates the ga5traieal and gastucalic reflexes ____________Esgeriences haustral churning

Saliva does not

All the pancreatic enzymes are secreted in inactive form.

Slow-wave potentials are always accompanied by contractile activity.

The islets of ____________________ are the endocrine cells of the pancreas.

Match gastric cell with correct characteristic. a.chief cells b.parietal cells c.mucous cells d.G cells of PGA -Secrete pepsinogen

The stomach mucosa is thrown into folds known as villi.

Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code . a.bile salts b.pepsin(ogen) c.amylase d.lipase e.trypsin(ogen) -Secreted by the salivary glands

Excessive small intestinal motility can lead to constipation because there is less time for absorption to take place.

Most of the fluid presented to the small intestine for absorption has been ingested in the most recent meal.

The pancreas secretes enzymes involved in the digestion of all three categories of foodstuff.

Identify the true statement(s) about the lipid emulsion in the digestive system.

The liver receives venous blood coming directly from the digestive tract and arterial blood coming from the aorta.

Indicate which digestive secretion is being described in each question by writing the appropriate letter in the blank using the following answer code . a.bile salts b.pepsin(ogen) c.amylase d.lipase e.trypsin(ogen) -Recycled many times through enterohepatic circulation