Question 1

After food and gastric juices combine,the gastric contents are referred to as

Accepted Answer

A)  bolus.
B)  chunk.
C)  chyme.
D)  feces.
E)  segments.F) A) and D)
G) A) and B)

Question 2

What local reflexes control the GI tract?

Accepted Answer

The GI tract has extensive sensory and m...

Question 3

The defecation reflex involves

Accepted Answer

A)  sympathetic nerves.
B)  relaxation of both the internal and external anal sphincters.
C)  conscious control of both the internal and external anal sphincters.
D)  relaxation of the ileocecal valve to move feces into the rectum.
E)  parasympathetic nerve control from sacral nerves.F) A) and E)
G) A) and D)

Question 4

The prominent ridges in the lining of the empty stomach are called

Accepted Answer

A)  cardia.
B)  papillae.
C)  rugae.
D)  plicae.
E)  villi.F) A) and E)
G) B) and C)

Question 5

Figure 24-1 The Stomach (dissected) 
Use Figure 24-1 to answer the following questions:
-Identify the structure labeled "10."

Accepted Answer

A)  longitudinal muscle layer
B)  circular muscle layer
C)  oblique muscle layer
D)  rugae
E)  submucosaF) C) and D)
G) A) and D)

Question 6

Digestion refers to the

Accepted Answer

A)  progressive dehydration of indigestible residue.
B)  mechanical breakdown of food.
C)  chemical breakdown of food.
D)  mechanical and chemical breakdown of food.
E)  All of the answers are correct.F) A) and E)
G) B) and E)

Question 7

Muscles known as the pharyngeal constrictors function in

Accepted Answer

A)  mastication.
B)  moving the tongue.
C)  swallowing.
D)  esophageal peristalsis.
E)  opening the cardiac sphincter.F) C) and D)
G) All of the above

Question 8

________ are also known as canines.

Accepted Answer

A)  Bicuspids
B)  Incisors
C)  Molars
D)  Secondary teeth
E)  CuspidsF) A) and B)
G) B) and D)

Question 9

The layer of loose connective tissue that directly supports the digestive epithelium is the

Accepted Answer

A)  lamina propria.
B)  muscularis mucosae.
C)  submucosa.
D)  submucosal plexus.
E)  myenteric plexus.F) A) and E)
G) C) and D)

Question 10

The taenia coli are

Accepted Answer

A)  tears of the colon.
B)  longitudinal bands of smooth muscle in the colon wall.
C)  ridges in the mucosa of the colon.
D)  polyps that obstruct the sigmoid colon.
E)  tumors normally confined in the sigmoid colon.F) C) and D)
G) A) and E)

Question 11

The duodenal ampulla receives secretions from the

Accepted Answer

A)  duodenum and the jejunum.
B)  duodenum and the pylorus.
C)  common bile duct and the pancreatic duct.
D)  duodenum and the pancreatic duct.
E)  duodenum and the common bile duct.F) A) and C)
G) None of the above

Question 12

In most cases,the mumps is a viral infection of the ________ glands.

Accepted Answer

A)  mandibular
B)  sublingual
C)  parotid
D)  submandibular
E)  lingualF) A) and B)
G) All of the above

Question 13

Carbohydrate digestion begins in the

Accepted Answer

A)  mouth.
B)  esophagus.
C)  stomach.
D)  duodenum.
E)  ileum.F) B) and D)
G) A) and B)

Question 14

The stomach secretes the hormone ghrelin which functions to

Accepted Answer

A)  inhibit hunger.
B)  initiate secretion of gastric juice containing enzymes and acid.
C)  regulate the digestion of lipids.
D)  stimulate hunger.
E)  stimulate secretion of mucus from submucosal glands.F) A) and E)
G) A) and C)

Question 15

Which of the following is an accessory organ of digestion?

Accepted Answer

A)  appendix
B)  pancreas
C)  spleen
D)  colon
E)  esophagusF) D) and E)
G) A) and D)

Question 16

Circular folds are

Accepted Answer

A)  ridges in the wall of the stomach.
B)  pleats in the lining of the small intestine.
C)  fingerlike projections on the surface of the mucosa of the small intestine.
D)  sacculations in the colon.
E)  abnormal structures formed by excessive pressure in the small intestine.F) A) and E)
G) None of the above

Question 17

A drug that blocks the action of carbonic anhydrase in parietal cells would result in

Accepted Answer

A)  a lower pH during gastric digestion.
B)  a higher pH during gastric digestion.
C)  decreased production of pepsinogen by chief cells.
D)  increased protein digestion in the stomach.
E)  decreased gastrin production.F) B) and C)
G) All of the above

Question 18

Approximately ________ liters of fluid are secreted by the small intestine each day.

Accepted Answer

A)  20
B)  10
C)  2
D)  1
E)  7F) A) and E)
G) None of the above

Question 19

In the center of a liver lobule there is a

Accepted Answer

A)  hepatic duct.
B)  portal area.
C)  sinusoid.
D)  central vein.
E)  portal vein.F) B) and D)
G) A) and B)

Question 20

The technical term for chewing is

Accepted Answer

A)  mastication.
B)  deglutition.
C)  peristalsis.
D)  segmentation.
E)  borborygmus.F) A) and B)
G) B) and E)

Exam 24: The Digestive System

The technical term for chewing is

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The layer of loose connective tissue that directly supports the digestive epithelium is the

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After food and gastric juices combine,the gastric contents are referred to as

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Approximately ________ liters of fluid are secreted by the small intestine each day.

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Which of the following is an accessory organ of digestion?

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The stomach secretes the hormone ghrelin which functions to

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In the center of a liver lobule there is a

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Muscles known as the pharyngeal constrictors function in

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Circular folds are

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What local reflexes control the GI tract?

Correct AnswerverifiedThe GI tract has extensive sensory and m...View AnswerShow Answer

The prominent ridges in the lining of the empty stomach are called

Correct AnswerverifiedShow Answer

A drug that blocks the action of carbonic anhydrase in parietal cells would result in

Correct AnswerverifiedShow Answer

The taenia coli are

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Figure 24-1 The Stomach (dissected) Use Figure 24-1 to answer the following questions: -Identify the structure labeled "10."

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Digestion refers to the

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The defecation reflex involves

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Carbohydrate digestion begins in the

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________ are also known as canines.

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The duodenal ampulla receives secretions from the

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In most cases,the mumps is a viral infection of the ________ glands.

Correct AnswerverifiedShow Answer

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The GI tract has extensive sensory and m...
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