Question 1

Both pancreatic juice and bile are secreted into the duodenum.

Accepted Answer

A) True 
 B)False

Question 2

Both chemical and mechanical digestion start in the mouth and continue in the stomach.

Accepted Answer

A) True 
 B)False

Question 3

The small intestine has a very large absorptive surface associated with all these structures except

Accepted Answer

A)  circular folds (plicae circulares) .
B)  intestinal length.
C)  microvilli.
D)  villi.
E)  rugae.F) B) and D)
G) B) and C)

Question 4

Hydrochloric acid (HCl)  is secreted by cells.

Accepted Answer

A)  mucous
B)  regenerative (stem) 
C)  parietal
D)  chief
E)  enteroendocrine36) F) B) and D)
G) A) and C)

Question 5

The gland is an extrinsic salivary gland, whereas the gland is an intrinsic salivary gland.

Accepted Answer

A)  lingual; labial
B)  submandibular; lingual
C)  submandibular; sublingual
D)  sublingual; parotid
E)  lingual; sublingualF) B) and E)
G) A) and C)

Question 6

Infants have deciduous teeth, whereas adults have permanent teeth.

Accepted Answer

A)  20; 32
B)  16; 20
C)  28; 20
D)  32; 20
E)  32; 32F) C) and D)
G) C) and E)

Question 7

The serous membranes that suspend the stomach and intestines from the abdominal wall are called

Accepted Answer

A)  mesenteries.
B)  mucosae.
C)  submucosae.
D)  muscularis mucosae.
E)  muscularis externa.F) B) and E)
G) None of the above

Question 8

The brush borders of intestinal absorptive cells contain numerous goblet cells.

Accepted Answer

A) True 
 B)False

Question 9

The muscle tone of the along the colon contracts it lengthwise, causing its walls to bulge and form pouches called .

Accepted Answer

A)  circular folds; ceca
B)  taeniae coli; haustra
C)  haustra; taeniae coli
D)  internal sphincters; omental (epiploic)  appendages
E)  internal sphincters; cecaF) D) and E)
G) A) and D)

Question 10

Carbohydrate digestion begins in the , whereas protein digestion begins in the .

Accepted Answer

A)  liver; small intestine
B)  small intestine; stomach
C)  mouth; stomach
D)  mouth; small intestine
E)  stomach; small intestineF) B) and E)
G) A) and C) C

Question 11

This image shows tissue layers of the digestive tract.What does "3" represent?

Accepted Answer

A)  lumen
B)  muscularis externa
C)  submucosa
D)  mucosa (mucous membrane) 
E)  serosaF) A) and B)
G) None of the above B

Question 12

The surface of the tongue is covered with stratified squamous epithelium, and has bumps called , site of taste buds.

Accepted Answer

A)  keratinized; lingual papillae
B)  keratinized; lingual frenulum
C)  nonkeratinized; lingual papillae
D)  nonkeratinized; tonsils
E)  nonkeratinized; vallate papillaeF) A) and B)
G) A) and C)

Question 13

These are all accessory organs of the digestive system except

Accepted Answer

A)  tongue.
B)  liver.
C)  pancreas.
D)  salivary glands.
E)  spleen.F) C) and D)
G) A) and E)

Question 14

Bacterial flora carry out all of the following except

Accepted Answer

A)  digest most of the proteins we get in the diet.
B)  synthesize vitamin K.
C)  produce some of the gases found in flatus.
D)  digest cellulose.
E)  form part of the feces.F) A) and E)
G) A) and D)

Question 15

The of the small intestine is/are similar to the of the stomach.

Accepted Answer

A)  villi; pyloric glands
B)  rugae; Peyer patches
C)  intestinal crypts; gastric pits
D)  goblet cells; parietal cells
E)  pyloric sphincter; ileocecal valveF) C) and E)
G) A) and B)

Question 16

Most fat is digested by pancreatic lipase.

Accepted Answer

A) True 
 B)False

Question 17

The large intestine absorbs water, fats, and salts.

Accepted Answer

A) True 
 B)False

Question 18

The sodium-glucose transport protein (SGLP)

Accepted Answer

A)  is a uniport carrier.
B)  is an antiport carrier.
C)  uses solvent drag to transport glucose and sodium.
D)  transports glucose and sodium from the intestinal lumen into the epithelial cells.
E)  transports glucose from the intestinal lumen into the epithelial cells, and sodium in the opposite direction.F) C) and E)
G) B) and E) D

Question 19

Odor, sight, and taste stimulate salivatory nuclei in the cerebral cortex.

Accepted Answer

A) True 
 B)False

Question 20

The small intestine is suspended from the abdominal wall by

Accepted Answer

A)  the falciform ligament.
B)  the mesentery.
C)  the greater omentum.
D)  the lesser omentum.
E)  the esophageal hiatus.F) C) and E)
G) C) and D)

Exam 25: The Digestive System

Both pancreatic juice and bile are secreted into the duodenum.

Correct AnswerverifiedShow Answer

Both chemical and mechanical digestion start in the mouth and continue in the stomach.

Correct AnswerverifiedShow Answer

The small intestine has a very large absorptive surface associated with all these structures except

Correct AnswerverifiedShow Answer

Hydrochloric acid (HCl) is secreted by cells.

Correct AnswerverifiedShow Answer

The gland is an extrinsic salivary gland, whereas the gland is an intrinsic salivary gland.

Correct AnswerverifiedShow Answer

Infants have deciduous teeth, whereas adults have permanent teeth.

Correct AnswerverifiedShow Answer

The serous membranes that suspend the stomach and intestines from the abdominal wall are called

Correct AnswerverifiedShow Answer

The brush borders of intestinal absorptive cells contain numerous goblet cells.

Correct AnswerverifiedShow Answer

The muscle tone of the along the colon contracts it lengthwise, causing its walls to bulge and form pouches called .

Correct AnswerverifiedShow Answer

Carbohydrate digestion begins in the , whereas protein digestion begins in the .

Correct AnswerverifiedC

This image shows tissue layers of the digestive tract.What does "3" represent?

Correct AnswerverifiedB

The surface of the tongue is covered with stratified squamous epithelium, and has bumps called , site of taste buds.

Correct AnswerverifiedShow Answer

These are all accessory organs of the digestive system except

Correct AnswerverifiedShow Answer

Bacterial flora carry out all of the following except

Correct AnswerverifiedShow Answer

The of the small intestine is/are similar to the of the stomach.

Correct AnswerverifiedShow Answer

Most fat is digested by pancreatic lipase.

Correct AnswerverifiedShow Answer

The large intestine absorbs water, fats, and salts.

Correct AnswerverifiedShow Answer

The sodium-glucose transport protein (SGLP)

Correct AnswerverifiedD

Odor, sight, and taste stimulate salivatory nuclei in the cerebral cortex.

Correct AnswerverifiedShow Answer

The small intestine is suspended from the abdominal wall by

Correct AnswerverifiedShow Answer

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C

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B

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D

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