Question 1

Use the key to choose the best answer.
-(1)  Number of villi in small intestine
(2)  Number of villi in large intestine

Accepted Answer

A)  First item is greater than the second item.
B)  First item is less than the second item.
C)  First item is equal or nearly equal to the second item.D) A) and B)
E) A) and C)

Question 2

The enteric plexus

Accepted Answer

A)   is found in the mucosa.
B)   consists of the myenteric plexus and the celiac plexus.
C)   contains sympathetic neurons and fibers.
D)   controls movement and secretion of the digestive tract.
E)   is a valve in the GI tract.F) A) and D)
G) C) and D)

Question 3

Which part of the pharynx is NOT involved with food transport?

Accepted Answer

A)   Nasopharynx
B)   Oropharynx
C)   LaryngopharynxD) All of the above
E) A) and B)

Question 4

Food is prevented from entering the nasal cavity during swallowing by the ________.

Accepted Answer

A)   epiglottis
B)   palatine tonsils
C)   tongue
D)   soft palate
E)   hard palateF) A) and D)
G) A) and C)

Question 5

Mastication

Accepted Answer

A)   increases the surface area of food particles.
B)   decreases the efficiency of digestion.
C)   occurs in both the mouth and stomach.
D)   is never under voluntary control.
E)   decreases the surface area of food particles.F) C) and E)
G) All of the above

Question 6

Salivary gland secretion is primarily controlled by the

Accepted Answer

A)   facial and glossopharyngeal nerves.
B)   vagus nerve.
C)   taste centers of the medulla.
D)   intercostal nerves.
E)   trigeminal nerve.F) B) and E)
G) B) and D)

Question 7

Which of the following statements applies to the ileocecal sphincter?

Accepted Answer

A)   Cecal distention enhances relaxation of this sphincter.
B)   Closure of this sphincter inhibits absorption in the small intestine.
C)   Peristaltic contractions reaching this sphincter cause it to relax.
D)   This sphincter is usually relaxed.
E)   This sphincter stays contracted.F) B) and D)
G) A) and B)

Question 8

Which layer of the small intestine wall contains cells with microvilli?

Accepted Answer

A)   Submucosa
B)   Mucosa
C)   Muscularis
D)   Serosa
E)   AdventitiaF) A) and B)
G) C) and D)

Question 9

Inability of the pyloric sphincter to open would prevent

Accepted Answer

A)   food from entering the stomach.
B)   stomach acid from being released.
C)   digestive enzymes from being released.
D)   food from entering the small intestine.
E)   the making of chyme.F) B) and E)
G) C) and D)

Question 10

Enzymes secreted by the small intestine include ________.

Accepted Answer

A)   disaccharidases
B)   secretin
C)   cholecystokinin
D)   bile
E)   histamineF) C) and D)
G) None of the above

Question 11

Use the key to choose the best answer.
-(1)  Amount of bicarbonate in the aqueous component of pancreatic juice
(2)  Amount of bicarbonate in the enzymatic portion of pancreatic juice

Accepted Answer

A)  First item is greater than the second item.
B)  First item is less than the second item.
C)  First item is equal or nearly equal to the second item.D) All of the above
E) A) and B)

Question 12

Which of the following will stimulate intestinal motility?

Accepted Answer

A)   Distension of the intestinal wall
B)   Low pH
C)   Presence of amino acids
D)   All of the choices are correct.E) A) and D)
F) A) and B)

Question 13

Which of the following lipoproteins contains the highest percentage of cholesterol?

Accepted Answer

A)   LDL
B)   HDL
C)   VLDL
D)   Chylomicron
E)   CDLF) B) and D)
G) A) and E)

Question 14

Which of the following is NOT a function of the small intestine?

Accepted Answer

A)   Mastication of food
B)   Absorption of nutrients
C)   Complete digestion of food
D)   Mixing by segmental contractionsE) B) and C)
F) A) and D)

Question 15

Which of the following organs is part of the digestive tract?

Accepted Answer

A)   Salivary gland
B)   Liver
C)   Gallbladder
D)   Stomach
E)   PancreasF) B) and D)
G) C) and D)

Question 16

The mucosa of the colon

Accepted Answer

A)   contains many mucus-secreting goblet cells.
B)   exchanges Na+ for Cl−.
C)   actively secretes Na+ and Cl−.
D)   produces enzymes that complete lipid digestion.
E)   consists of stratified columnar epithelium.F) A) and B)
G) A) and E)

Question 17

Where does the majority of nutrient absorption occur?

Accepted Answer

A)   The stomach and duodenum
B)   The duodenum and ileum
C)   The jejunum and duodenum
D)   The ileum and jejunumE) A) and B)
F) A) and C)

Question 18

What is the function of enteric sensory neurons?

Accepted Answer

A)   Detect changes in chemical composition of digestive tract contents
B)   Stimulate or inhibit smooth muscle contraction in the digestive tract
C)   Stimulate or inhibit glandular secretion in the digestive tract
D)   Detect stretch of the digestive tract wall
E)   Both "Detect changes in chemical composition of digestive tract contents" and "Detect stretch of the digestive tract wall" are correct.F) B) and D)
G) D) and E)

Question 19

Feces consist of ________.

Accepted Answer

A)   water
B)   undigestible food
C)   bacteria
D)   sloughed-off epithelial cells
E)   All of the answers are correctF) B) and E)
G) A) and D)

Question 20

What connects the gallbladder to the common bile duct?

Accepted Answer

A)   Hepatic duct
B)   Gallbladder duct
C)   Cystic duct
D)   Portal ductE) None of the above
F) A) and C)

Exam 24: Digestive System

Feces consist of ________.

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Which part of the pharynx is NOT involved with food transport?

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Enzymes secreted by the small intestine include ________.

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Which of the following is NOT a function of the small intestine?

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Use the key to choose the best answer. -(1) Number of villi in small intestine (2) Number of villi in large intestine

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Use the key to choose the best answer. -(1) Amount of bicarbonate in the aqueous component of pancreatic juice (2) Amount of bicarbonate in the enzymatic portion of pancreatic juice

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The enteric plexus

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Which of the following organs is part of the digestive tract?

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What is the function of enteric sensory neurons?

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Salivary gland secretion is primarily controlled by the

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Where does the majority of nutrient absorption occur?

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The mucosa of the colon

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Which of the following statements applies to the ileocecal sphincter?

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Mastication

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Which layer of the small intestine wall contains cells with microvilli?

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Which of the following lipoproteins contains the highest percentage of cholesterol?

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What connects the gallbladder to the common bile duct?

Correct AnswerverifiedShow Answer

Inability of the pyloric sphincter to open would prevent

Correct AnswerverifiedShow Answer

Food is prevented from entering the nasal cavity during swallowing by the ________.

Correct AnswerverifiedShow Answer

Which of the following will stimulate intestinal motility?

Correct AnswerverifiedShow Answer

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