Question 1

Which statement regarding control of digestive processes is incorrect?

Accepted Answer

A)   short reflexes influence motility and secretion in localized areas.
B)   all elements of the short reflexes are contained within the digestive organ's wall.
C)   hormones play a role.
D)   osmoreceptors monitor the acidity of the luminal contents.
E)   there are stretch receptors in the walls of digestive organs.F) A) and C)
G) B) and C)

Question 2

The chief cells of the gastric mucosa secrete

Accepted Answer

A)   bicarbonate ions.
B)   HCl.
C)   pepsinogen.
D)   sucrase.
E)   trypsin.F) A) and E)
G) A) and D)

Question 3

The presence of ____________________ in the stomach is the main stimulus to enhance gastric secretion.

Accepted Answer

The answer of The presence of ____________________ in the stomach...

Question 4

MATCHING: ART
  
The accompanying figure relates to lipid digestion and absorption. Match the steps highlighted in the figure (steps 1-8)  with the statements using the letter key below.
-Micelles form containing end products of fat digestion

Accepted Answer

A)  Step 1
B)  Step 2
C)  Step 3
D)  Step 4
E)  Step 5F) Step 6G) Step 7H) Step 8I) All of the above
J) A) and D)

Question 5

Match structural unit with correct characteristic.
-Shortens the digestive tract longitudinal.

Accepted Answer

A)  serosa
B)  circular smooth muscle layer
C)  mucous membrane
D)  lamina propria
E)  submucosaF) longitudinal smooth muscle layerG) A) and F)
H) D) and E)

Question 6

Which is not a brush border enzyme?

Accepted Answer

A)   enterokinase.
B)   aminopeptidase.
C)   lipase.
D)   lactase.
E)   maltase.F) C) and D)
G) A) and C)

Question 7

Indicate which hormone(s)  is being described by writing the appropriate letter in the blank using the following answer code:
-Stimulate(s)  pancreatic aqueous NaHCO3 secretion.

Accepted Answer

A)  both secretin and CCK
B)  secretin
C)  CCK
D)  gastrinE) All of the above
F) None of the above

Question 8

Which of the following enzymes is not secreted into the duodenal lumen?

Accepted Answer

A)   aminopeptidase.
B)   lipase.
C)   trypsinogen.
D)   procarboxypeptidase.
E)   amylase.F) C) and E)
G) C) and D)

Question 9

Match structural unit with correct characteristic.
-Houses gut-associated lymphoid tissue.

Accepted Answer

A)  serosa
B)  circular smooth muscle layer
C)  mucous membrane
D)  lamina propria
E)  submucosaF) longitudinal smooth muscle layerG) B) and D)
H) A) and B)

Question 10

Indicate the site at which the following digestive processes take place by writing the appropriate letter in the blank using the following answer code:
-Bile secreted into here.

Accepted Answer

A)  mouth
B)  stomach
C)  small intestine lumen
D)  intracellularly in the small intestine brush border
E)  colonF) C) and E)
G) None of the above

Question 11

The pharyngoesophageal sphincter is normally closed to prevent esophageal secretions from entering the pharynx during breathing.

Accepted Answer

A) True 
 B)False

Question 12

Digestive secretions include all of the following except:

Accepted Answer

A)   enzymes.
B)   bile.
C)   mucus.
D)   salts
E)   vitaminsF) None of the above
G) B) and C)

Question 13

Bile consists of all of the following except:

Accepted Answer

A)   lipase
B)   alkaline fluid
C)   bile salts
D)   lecithin
E)   bilirubinF) B) and E)
G) B) and C)

Question 14

Indicate which hormone(s)  is being described by writing the appropriate letter in the blank using the following answer code:
-Secreted by the small intestine mucosa.

Accepted Answer

A)  both secretin and CCK
B)  secretin
C)  CCK
D)  gastrinE) B) and C)
F) None of the above

Question 15

The small intestine are also known as the colon.

Accepted Answer

A) True 
 B)False

Question 16

Match structural unit with correct characteristic.
-Anchors digestive organs in place.

Accepted Answer

A)  serosa
B)  circular smooth muscle layer
C)  mucous membrane
D)  lamina propria
E)  submucosaF) longitudinal smooth muscle layerG) A) and D)
H) A) and B)

Question 17

Which motility sweeps digestive remnants toward the colon between meals?

Accepted Answer

A)   segmentation
B)   haustral contraction
C)   pacemaker potentials
D)   migrating motility complex
E)   mass movementsF) A) and B)
G) C) and E)

Question 18

Chewing increases which of the following secretions?

Accepted Answer

A)   salivary secretion.
B)   gastric secretion.
C)   pancreatic secretion.
D)   both (a)  and (b)  above.
E)   all of these answers.F) C) and D)
G) A) and B)

Question 19

Which of the following factors will not influence the rate at which a meal will empty from the stomach?

Accepted Answer

A)   fat in the duodenum.
B)   acid in the duodenum.
C)   caffeine in the duodenum.
D)   hypertonicity of the duodenal contents.
E)   distention of the duodenum.F) None of the above
G) A) and B)

Question 20

How many different species of bacteria reside in the colon?

Accepted Answer

A)   1-5
B)   10-50
C)   100-500
D)   500-1000
E)   over 1000F) A) and D)
G) C) and D)

Exam 15: The Digestive System

Which is not a brush border enzyme?

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Which of the following enzymes is not secreted into the duodenal lumen?

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The presence of ____________________ in the stomach is the main stimulus to enhance gastric secretion.

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Match structural unit with correct characteristic. -Anchors digestive organs in place.

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Indicate which hormone(s) is being described by writing the appropriate letter in the blank using the following answer code: -Stimulate(s) pancreatic aqueous NaHCO3 secretion.

Correct AnswerverifiedShow Answer

Chewing increases which of the following secretions?

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Match structural unit with correct characteristic. -Houses gut-associated lymphoid tissue.

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Match structural unit with correct characteristic. -Shortens the digestive tract longitudinal.

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Bile consists of all of the following except:

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MATCHING: ART The accompanying figure relates to lipid digestion and absorption. Match the steps highlighted in the figure (steps 1-8) with the statements using the letter key below. -Micelles form containing end products of fat digestion

Correct AnswerverifiedShow Answer

The small intestine are also known as the colon.

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The pharyngoesophageal sphincter is normally closed to prevent esophageal secretions from entering the pharynx during breathing.

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How many different species of bacteria reside in the colon?

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Indicate which hormone(s) is being described by writing the appropriate letter in the blank using the following answer code: -Secreted by the small intestine mucosa.

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Which statement regarding control of digestive processes is incorrect?

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The chief cells of the gastric mucosa secrete

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Which motility sweeps digestive remnants toward the colon between meals?

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Indicate the site at which the following digestive processes take place by writing the appropriate letter in the blank using the following answer code: -Bile secreted into here.

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Which of the following factors will not influence the rate at which a meal will empty from the stomach?

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Digestive secretions include all of the following except:

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