The Digestive System

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Question 1
Free
Multiple Choice

Each of the following organs is a component of the digestive tract except the

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A

stomach.

B

pharynx.

C

esophagus.

D

bladder.

E

colon.

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Question 2
Free
Multiple Choice

Which of the following is an accessory organ of digestion?

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A

appendix

B

pancreas

C

spleen

D

colon

E

esophagus

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Question 3
Free
Multiple Choice

Digestion refers to the

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A

progressive dehydration of indigestible residue.

B

mechanical breakdown of food.

C

chemical breakdown of food.

D

mechanical and chemical breakdown of food.

E

release of water, acids, enzymes and buffers by organs.

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Question 4
Free
Multiple Choice

Which of the following is not a function of the digestive system?

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A

mechanical processing

B

absorption

C

secretion

D

ingestion

E

filtration

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Question 5
Free
Multiple Choice

Which of the following descriptions best matches the term submucosal plexus?

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A

component of mucosa

B

sensory neural network

C

secretes a watery fluid

D

coordinates activity of muscularis externa

E

loose connective tissue layer containing blood vessels

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Question 6
Multiple Choice

Waves of muscular contractions that propel the contents of the digestive tract are called

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A
segmentation.
B
pendular movements.
C
peristalsis.
D
churning movements.
E
mastication.
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Question 7
Multiple Choice

The lamina propria and mucous epithelium are components of the

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A
serosa.
B
adventitia.
C
muscularis mucosa.
D
mucosa.
E
submucosa.
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Question 8
Multiple Choice

Which of the following descriptions best matches the term myenteric plexus?

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A
component of mucosa
B
sensory neural network
C
secretes a watery fluid
D
coordinates activity of muscularis externa
E
loose connective tissue layer containing blood vessels
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Question 9
Multiple Choice

Contraction of the ________ alters the shape of the intestinal lumen and moves epithelial pleats and folds.

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A
mucosa
B
submucosa
C
submucosal neural plexus
D
muscularis mucosa
E
adventitia
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Question 10
Multiple Choice

The ________ are double sheets of peritoneal membrane that suspend the visceral organs and carry nerves,lymphatics, and blood vessels.

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A
serosa
B
adventitia
C
mesenteries
D
fibrosa
E
lamina propria
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Question 11
Multiple Choice

Sensory nerve cells, parasympathetic ganglia, and sympathetic postganglionic fibers can be found in the

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A
mucosa.
B
serosa.
C
adventitia.
D
submucosal neural plexus.
E
lamina propria.
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Question 12
Multiple Choice

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

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A
mucosa.
B
submucosa.
C
muscularis mucosa.
D
myenteric plexus.
E
submucosal neural plexus.
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Question 13
Multiple Choice

Large blood vessels and lymphatics are found in the

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A
mucosa.
B
submucosa.
C
muscularis.
D
adventitia.
E
serosa.
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Question 14
Multiple Choice

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

Choose correct answer/s
A
lamina propria.
B
muscularis mucosae.
C
submucosa.
D
submucosal neural plexus.
E
myenteric plexus.
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Question 15
Multiple Choice

A stratified squamous epithelial lining can be found in all of the following except in the

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A
anal canal.
B
esophagus.
C
stomach.
D
oropharynx.
E
oral cavity.
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Question 16
Multiple Choice

A feature of the digestive tract wall that increases surface area available for absorption is the

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A
transitional cells.
B
circular folds.
C
elastic cells.
D
rugae.
E
muscularis mucosa.
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Question 17
Multiple Choice

The ________ supports all but 25 cm of the small intestine and provides stability and limited movement.

Choose correct answer/s
A
falciform ligament
B
greater omentum
C
mesentery proper
D
lesser omentum
E
diaphragm
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Question 18
Multiple Choice

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

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A
falciform ligament
B
greater omentum
C
mesentery proper
D
lesser omentum
E
diaphragm
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Question 19
Multiple Choice

Which organ is responsible for dehydration and compaction of indigestible materials?

Choose correct answer/s
A
small intestine
B
esophagus
C
large intestine
D
stomach
E
anus
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Question 20
Multiple Choice

The double-layer sheets of serous membrane that support the viscera are called

Choose correct answer/s
A
peritoneal sheets.
B
mesenteries.
C
ascites.
D
the diaphragm.
E
the dorsal and ventral frenulums.
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