Question 1

The villi are most developed in the

Accepted Answer

A)   stomach.
B)   duodenum.
C)   jejunum.
D)   gall bladder.
E)   cecum.F) A) and E)
G) A) and D)

Question 2

The pancreas produces ________-digesting enzymes in the form of proenzymes.

Accepted Answer

A)   carbohydrate
B)   protein
C)   sugar
D)   lipid
E)   nucleic acidF) C) and E)
G) A) and C)

Question 3

Contraction of the muscle layer labeled "9" causes the digestive tract to

Accepted Answer

A)   constrict.
B)   shorten.
C)   dilate.
D)   fold for increased surface area.
E)   secrete enzymes.F) A) and E)
G) C) and D)

Question 4

Submucosal glands that secrete mucus are characteristic of the

Accepted Answer

A)   duodenum.
B)   jejunum.
C)   ileum.
D)   pancreas.
E)   liver.F) A) and D)
G) None of the above

Question 5

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) A) and B)
G) All of the above

Question 6

The circumferential folds that encircle the lumen of the small intestine are known as ________.

Accepted Answer

The answer of The circumferential folds that encircle the lumen...

Question 7

The fusion of the hepatic duct and the cystic duct forms the

Accepted Answer

A)   hepatic portal vein.
B)   porta hepatis.
C)   common bile duct.
D)   common pancreatic duct.
E)   bile canaliculus.F) A) and D)
G) B) and C)

Question 8

Which of the following is a remnant of the fetal umbilical vein?

Accepted Answer

A)   round ligament
B)   greater omentum
C)   mesentery proper
D)   lesser omentum
E)   diaphragmF) B) and C)
G) C) and E)

Question 9

Figure 21-1 The Stomach (dissected) 
Use Figure 21-1 to answer the following questions:
-Identify the structure labeled "7."

Accepted Answer

A)   esophagus
B)   cardia
C)   lesser curvature
D)   greater curvature
E)   pylorusF) B) and C)
G) A) and C)

Question 10

________ are also known as canines.

Accepted Answer

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

Question 11

Gastric pits are

Accepted Answer

A)   ridges in the body of the stomach.
B)   involved in absorption of liquids from the stomach.
C)   openings into gastric glands.
D)   acid scars in the esophagus.
E)   hollows where proteins are stored.F) All of the above
G) D) and E)

Question 12

Sandwiched between the layer of circular and longitudinal muscle in the muscularis externa is the

Accepted Answer

A)   mucosa.
B)   submucosa.
C)   muscularis mucosa.
D)   myenteric plexus.
E)   submucosal plexus.F) None of the above
G) B) and C)

Question 13

An enzyme that digests proteins into peptides is

Accepted Answer

A)   lipase.
B)   amylase.
C)   nuclease.
D)   maltase.
E)   trypsin.F) C) and D)
G) A) and D)

Question 14

An intestinal hormone that stimulates contraction of the gallbladder to release bile is

Accepted Answer

A)   enteropeptidase.
B)   secretin.
C)   cholecystokinin.
D)   GIP.
E)   gastrin.F) B) and D)
G) All of the above

Question 15

________ are pointed teeth that are adapted for tearing and slashing.

Accepted Answer

A)   Incisors
B)   Bicuspids
C)   Premolars
D)   Cuspids
E)   MolarsF) A) and B)
G) A) and C)

Question 16

Which of the following contains adipose tissue and provides padding for the anterior and lateral portions of the abdomen?

Accepted Answer

A)   falciform ligament
B)   greater omentum
C)   mesentery proper
D)   lesser omentum
E)   diaphragmF) B) and E)
G) A) and E)

Question 17

Powerful peristaltic contractions that occur a few times each day in the colon are called

Accepted Answer

A)   segmentation.
B)   pendular movements.
C)   haustral churning.
D)   defecation.
E)   mass movements.F) B) and C)
G) A) and C)

Question 18

The Kupffer cells of the liver

Accepted Answer

A)   destroy damaged RBCs.
B)   destroy bacteria.
C)   present antigens.
D)   are phagocytic.
E)   all of the aboveF) A) and B)
G) None of the above

Question 19

The human liver is composed of ________ lobe(s) .

Accepted Answer

A)   one
B)   two
C)   three
D)   four
E)   two large, four smallF) B) and D)
G) All of the above

Question 20

The hormone that stimulates secretion and contraction by the stomach is

Accepted Answer

A)   gastrin.
B)   enteropeptidase.
C)   secretin.
D)   cholecystokinin.
E)   CCK.F) A) and B)
G) B) and C)

Exam 21: The Digestive System

Which of the following is a remnant of the fetal umbilical vein?

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________ are pointed teeth that are adapted for tearing and slashing.

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The villi are most developed in the

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The Kupffer cells of the liver

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An enzyme that digests proteins into peptides is

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The pancreas produces ________-digesting enzymes in the form of proenzymes.

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The human liver is composed of ________ lobe(s) .

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Submucosal glands that secrete mucus are characteristic of the

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________ are also known as canines.

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Contraction of the muscle layer labeled "9" causes the digestive tract to

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Figure 21-1 The Stomach (dissected) Use Figure 21-1 to answer the following questions: -Identify the structure labeled "7."

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Gastric pits are

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Which of the following contains adipose tissue and provides padding for the anterior and lateral portions of the abdomen?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Sandwiched between the layer of circular and longitudinal muscle in the muscularis externa is the

Correct AnswerverifiedShow Answer

The hormone that stimulates secretion and contraction by the stomach is

Correct AnswerverifiedShow Answer

The circumferential folds that encircle the lumen of the small intestine are known as ________.

Correct AnswerverifiedShow Answer

The fusion of the hepatic duct and the cystic duct forms the

Correct AnswerverifiedShow Answer

An intestinal hormone that stimulates contraction of the gallbladder to release bile is

Correct AnswerverifiedShow Answer

Powerful peristaltic contractions that occur a few times each day in the colon are called

Correct AnswerverifiedShow Answer

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