Question 1

What structures compose a portal triad?

Accepted Answer

A)  Branches of the hepatic artery, hepatic vein, and hepatic duct 
B)  Branches of the common bile duct, central vein, and hepatic artery 
C)  Branches of the hepatic duct, cystic duct, and central vein 
D)  Branches of the hepatic artery, hepatic portal vein, and hepatic duct 
E)  Branches of the cystic duct, central vein, and hepatic artery 
A)  Branches of the hepatic artery, hepatic vein, and hepatic duct 
B)  Branches of the common bile duct, central vein, and hepatic artery 
C)  Branches of the hepatic duct, cystic duct, and central vein 
D)  Branches of the hepatic artery, hepatic portal vein, and hepatic duct 
E)  Branches of the cystic duct, central vein, and hepatic artery

Question 2

Bile salts are

Accepted Answer

A)  amphipathic. 
B)  completely hydrophilic. 
C)  completely hydrophobic. 
A)  amphipathic. 
B)  completely hydrophilic. 
C)  completely hydrophobic.

Question 3

During swallowing, elevation of the uvula and soft palate prevents food or fluid from entering the nasopharynx.

Accepted Answer

A) True 
 B)False

Question 4

The gastrointestinal tract lining changes along its length. Choose one section of the tract that has a simple epithelium and one section that has a stratified epithelium, and for each section describe the specific epithelium present and how that type of epithelium suits the organ's function.

Accepted Answer

A variety of answers are possible, but a

Question 5

The type of receptor within the GI tract wall that detects stretch is the

Accepted Answer

A)  steroid receptor. 
B)  chemoreceptor. 
C)  mechanoreceptor. 
D)  retroperitoneal proprioceptor. 
A)  steroid receptor. 
B)  chemoreceptor. 
C)  mechanoreceptor. 
D)  retroperitoneal proprioceptor.

Question 6

Which organ is retroperitoneal?

Accepted Answer

A)  Stomach 
B)  Jejunum 
C)  Transverse colon 
D)  Pancreas 
E)  Cecum 
A)  Stomach 
B)  Jejunum 
C)  Transverse colon 
D)  Pancreas 
E)  Cecum

Question 7

The lining of the gastrointestinal tract that allows for absorption and secretion is

Accepted Answer

A)  keratinized stratified squamous epithelium. 
B)  nonkeratinized stratified squamous epithelium. 
C)  areolar connective tissue. 
D)  simple columnar epithelium. 
E)  simple squamous epithelium. 
A)  keratinized stratified squamous epithelium. 
B)  nonkeratinized stratified squamous epithelium. 
C)  areolar connective tissue. 
D)  simple columnar epithelium. 
E)  simple squamous epithelium.

Question 8

The quadrate lobe is visible on the inferior surface of the liver, adjacent to the gallbladder.

Accepted Answer

A) True 
 B)False

Question 9

The liver and gallbladder are accessory digestive organs.

Accepted Answer

A) True 
 B)False

Question 10

Lacteals

Accepted Answer

A)  are found only in the large intestine. 
B)  absorb the products of fat digestion. 
C)  secrete intestinal juice. 
D)  connect directly to the liver. 
E)  All of the choices are correct. 
A)  are found only in the large intestine. 
B)  absorb the products of fat digestion. 
C)  secrete intestinal juice. 
D)  connect directly to the liver. 
E)  All of the choices are correct.

Question 11

Maltase is a brush border enzyme of the small intestine that digests the sugar maltose.

Accepted Answer

A) True 
 B)False

Question 12

Of the three regions of the small intestine, the terminal (end) portion is the ________.

Accepted Answer

The answer of Of the three regions of the small...

Question 13

Once micelles enter intestinal epithelial cells, fatty acids and monoglycerides combine to form triglycerides.

Accepted Answer

A) True 
 B)False

Question 14

The submandibular ducts open into the floor of the oral cavity, lateral to the lingual frenulum.

Accepted Answer

A) True 
 B)False

Question 15

Gross & microscopic anatomy of the alimentary canal.  
-This figure shows an intestinal villus. The structure indicated by number 3 is a

Accepted Answer

A)  submucosal gland. 
B)  Brunner gland. 
C)  lymphatic nodule. 
D)  plicae circulares. 
E)  mucous gland. 
A)  submucosal gland. 
B)  Brunner gland. 
C)  lymphatic nodule. 
D)  plicae circulares. 
E)  mucous gland.

Question 16

Nucleosidase is an enzyme that breaks the

Accepted Answer

A)  phosphodiester bond between nucleotides within DNA. 
B)  bond that attaches the phosphate to the nucleoside. 
C)  bond between the sugar and the nitrogenous base of the nucleoside. 
D)  bonds within the nitrogenous bases of rRNA. 
A)  phosphodiester bond between nucleotides within DNA. 
B)  bond that attaches the phosphate to the nucleoside. 
C)  bond between the sugar and the nitrogenous base of the nucleoside. 
D)  bonds within the nitrogenous bases of rRNA.

Question 17

The buccal, lingual, and labial salivary glands are ________ salivary glands.

Accepted Answer

A)  extrinsic 
B)  intrinsic 
A)  extrinsic 
B)  intrinsic

Question 18

Cholecystokinin decreases stomach motility and inhibits release of gastrin.

Accepted Answer

A) True 
 B)False

Question 19

Sympathetic stimulation causes saliva to be more viscous.

Accepted Answer

A) True 
 B)False

Question 20

Long reflexes of digestion involve activity of the central nervous system.

Accepted Answer

A) True 
 B)False

Exam 26: Digestive System

What structures compose a portal triad?

Bile salts are

During swallowing, elevation of the uvula and soft palate prevents food or fluid from entering the nasopharynx.

The gastrointestinal tract lining changes along its length. Choose one section of the tract that has a simple epithelium and one section that has a stratified epithelium, and for each section describe the specific epithelium present and how that type of epithelium suits the organ's function.

The type of receptor within the GI tract wall that detects stretch is the

Which organ is retroperitoneal?

The lining of the gastrointestinal tract that allows for absorption and secretion is

The quadrate lobe is visible on the inferior surface of the liver, adjacent to the gallbladder.

The liver and gallbladder are accessory digestive organs.

Lacteals

Maltase is a brush border enzyme of the small intestine that digests the sugar maltose.

Of the three regions of the small intestine, the terminal (end) portion is the ________.

Once micelles enter intestinal epithelial cells, fatty acids and monoglycerides combine to form triglycerides.

The submandibular ducts open into the floor of the oral cavity, lateral to the lingual frenulum.

Gross & microscopic anatomy of the alimentary canal. -This figure shows an intestinal villus. The structure indicated by number 3 is a

Nucleosidase is an enzyme that breaks the

The buccal, lingual, and labial salivary glands are ________ salivary glands.

Cholecystokinin decreases stomach motility and inhibits release of gastrin.

Sympathetic stimulation causes saliva to be more viscous.

Long reflexes of digestion involve activity of the central nervous system.

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