Question 1

The region of the stomach superior to the cardia is the

Accepted Answer

A)   rugae.
B)   pylorus.
C)   fundus.
D)   antrum.
E)   body.

Question 2

Functions of the large intestine include

Accepted Answer

A)   chemical digestion of chyme.
B)   temporary food storage.
C)   reabsorption of water and compaction of feces.
D)   absorption of the products of digestion.
E)   production of digestive enzymes.

Question 3

The layer of the digestive tract that underlies the mucosal epithelium and consists of areolar connective tissue is the

Accepted Answer

A)   lamina propria.
B)   submucosa.
C)   muscularis.
D)   serosa.
E)   adventitia.

Question 4

Figure 16-1 Structural Components of the Digestive Tract
Use Figure 16-1 to identify the labeled part.
-Label L represents which structure(s) ?

Accepted Answer

A)   mucosal glands
B)   mucosa
C)   villi
D)   mucous epithelium
E)   lamina propria

Question 5

The space between the cheeks or lips and the teeth is called the

Accepted Answer

A)   pharynx.
B)   larynx.
C)   epiglottis.
D)   vestibule.
E)   cheek.

Question 6

The pancreatic duct penetrates the duodenal wall with the

Accepted Answer

A)   cystic duct.
B)   hepatic portal vein.
C)   common hepatic duct.
D)   common hepatic artery.
E)   common bile duct.

Question 7

Which phase of swallowing begins with compression of the bolus against the hard palate?

Accepted Answer

A)   esophageal
B)   gastric
C)   buccal
D)   pharyngeal
E)   duodenal

Question 8

The basic functional units of the liver are the

Accepted Answer

A)   hepatocytes.
B)   liver cells.
C)   lobules.
D)   portal areas.
E)   bile canaliculi.

Question 9

The pH of saliva is

Accepted Answer

A)   highly basic.
B)   slightly basic.
C)   neutral.
D)   slightly acidic.
E)   very acidic.

Question 10

The oral cavity, pharynx, esophagus, and anus are lined by

Accepted Answer

A)   pseudostratified ciliated columnar epithelium.
B)   cuboidal epithelium.
C)   stratified squamous epithelium.
D)   simple epithelium.
E)   simple columnar epithelium.

Question 11

Rugae are

Accepted Answer

A)   mucosal ridges in the stomach.
B)   involved in absorption of liquids from the stomach.
C)   pockets in the lining of the stomach that contain secretory cells.
D)   located in the esophagus.
E)   present when the stomach is at maximum distention.

Question 12

The esophagus passes through a hole in the diaphragm called the

Accepted Answer

A)   esophageal hiatus.
B)   cardia.
C)   pylorus.
D)   upper esophageal sphincter.
E)   lower esophageal sphincter.

Question 13

The lesser omentum is

Accepted Answer

A)   a major portion of the stomach.
B)   attached to the stomach at the greater curvature.
C)   important in the digestion of fats.
D)   a fatty sheet that hangs like an apron over the abdominal viscera.
E)   a mesentery that extends from the stomach to the liver.

Question 14

Figure 16-1 Structural Components of the Digestive Tract
Use Figure 16-1 to identify the labeled part.
-Label A represents which structure(s) ?

Accepted Answer

A)   myenteric plexus
B)   mesenteric artery and vein
C)   lymphatic vessel
D)   submucosal plexus
E)   mucosal gland

Question 15

Maltase, sucrase, and lactase are carbohydrases produced by the

Accepted Answer

A)   small intestine.
B)   liver.
C)   parotid salivary gland.
D)   pancreas.
E)   stomach.

Question 16

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

Accepted Answer

A)   one
B)   two
C)   three
D)   four
E)   five

Question 17

Which of the following produces secretions with mostly buffers and mucus, but few enzymes?

Accepted Answer

A)   parotid and submandibular salivary glands
B)   parotid salivary glands only
C)   sublingual and parotid salivary glands
D)   submandibular and sublingual salivary glands
E)   pancreas and parotid salivary glands

Question 18

Cholecystokinin from the intestinal wall is stimulated by the presence of

Accepted Answer

A)   lipids and partially digested proteins in the duodenum.
B)   proteins and partially digested lipids in the duodenum.
C)   lipids and partially digested carbohydrates in the duodenum.
D)   proteins and partially digested carbohydrates in the duodenum.
E)   carbohydrates and partially digested lipids in the duodenum.

Question 19

Figure 16-1 Structural Components of the Digestive Tract
Use Figure 16-1 to identify the labeled part.
-Label Q represents which structure(s) ?

Accepted Answer

A)   myenteric plexus
B)   artery and vein
C)   lymphatic vessel
D)   submucosal plexus
E)   mucosal glands

Question 20

The oral cavity, pharynx, esophagus, and rectum have an adventitia in place of the

Accepted Answer

A)   mucosa.
B)   lamina propria.
C)   serosa.
D)   muscularis externa.
E)   submucosa.

Exam 16: The Digestive System

Figure 16-1 Structural Components of the Digestive Tract Use Figure 16-1 to identify the labeled part. -Label Q represents which structure(s) ?

Correct AnswerverifiedShow Answer

Which of the following produces secretions with mostly buffers and mucus, but few enzymes?

Correct AnswerverifiedShow Answer

The layer of the digestive tract that underlies the mucosal epithelium and consists of areolar connective tissue is the

Correct AnswerverifiedShow Answer

The pancreatic duct penetrates the duodenal wall with the

Correct AnswerverifiedShow Answer

The region of the stomach superior to the cardia is the

Correct AnswerverifiedShow Answer

Cholecystokinin from the intestinal wall is stimulated by the presence of

Correct AnswerverifiedShow Answer

Maltase, sucrase, and lactase are carbohydrases produced by the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The pH of saliva is

Correct AnswerverifiedShow Answer

Figure 16-1 Structural Components of the Digestive Tract Use Figure 16-1 to identify the labeled part. -Label L represents which structure(s) ?

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Figure 16-1 Structural Components of the Digestive Tract Use Figure 16-1 to identify the labeled part. -Label A represents which structure(s) ?

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The lesser omentum is

Correct AnswerverifiedShow Answer

The space between the cheeks or lips and the teeth is called the

Correct AnswerverifiedShow Answer

The oral cavity, pharynx, esophagus, and rectum have an adventitia in place of the

Correct AnswerverifiedShow Answer

Which phase of swallowing begins with compression of the bolus against the hard palate?

Correct AnswerverifiedShow Answer

Rugae are

Correct AnswerverifiedShow Answer

The oral cavity, pharynx, esophagus, and anus are lined by

Correct AnswerverifiedShow Answer

Functions of the large intestine include

Correct AnswerverifiedShow Answer

The esophagus passes through a hole in the diaphragm called the

Correct AnswerverifiedShow Answer

The basic functional units of the liver are the

Correct AnswerverifiedShow Answer

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