Question 1

Peristalsis

Accepted Answer

A)  is under voluntary control.
B)  involves the opening and closing of muscular sphincters.
C)  involves back-and-forth movement for mixing.
D)  is the alternating contraction of muscle layers in the GI tract wall that propels materials through the tract.
E)  All of the choices are correct.F) B) and D)
G) B) and E)

Question 2

Which is an accurate description of glucose and sucrose

Accepted Answer

A)  Glucose is a monosaccharide,sucrose is a polysaccharide,both molecules are starches.
B)  Glucose is a monosaccharide,sucrose is a disaccharide,both molecules are carbohydrates.
C)  Glucose is a disaccharide,sucrose is a monosaccharide,both molecules are lipids.
D)  Glucose is a disaccharide,sucrose is a glycolipid,both molecules are essential nutrients.
E)  Glucose is a monoamine,sucrose is a dipeptide,both molecules are acidic.F) B) and D)
G) C) and E)

Question 3

The largest salivary gland is the ________ gland,and its duct opens near the second upper molar.

Accepted Answer

The answer of The largest salivary gland is the ________...

Question 4

Which cranial nerves innervate the salivary glands

Accepted Answer

A)  V and VII
B)  XI and XII
C)  VII and IX
D)  VI and IX
E)  V and XIF) C) and E)
G) D) and E)

Question 5

The pancreas is part of the alimentary canal.

Accepted Answer

A) True 
 B)False

Question 6

-This figure shows the stomach.Which number indicates the fundus

Accepted Answer

A)  1
B)  2
C)  4
D)  7
E)  8F) B) and D)
G) A) and D)

Question 7

The wall of the pharynx is formed by three muscle pairs: the superior,middle,and inferior pharyngeal _______________.

Accepted Answer

The answer of The wall of the pharynx is formed...

Question 8

At the pylorus of the stomach,closure of the pyloric sphincter during the multistep process of gastric emptying leads to a reverse current of material;this reverse flow event is known as ___________.

Accepted Answer

The answer of At the pylorus of the stomach,closure of...

Question 9

In some digestive reflexes,the facial nerve stimulates salivary glands;the salivary glands are acting as

Accepted Answer

A)  afferents.
B)  receptors.
C)  efferents.
D)  effectors.
E)  control centers.F) A) and E)
G) A) and D)

Question 10

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.E) B) and C)
F) B) and D)

Question 11

Vitamin K and B vitamins produced by bacteria of the large intestine are absorbed into the blood.

Accepted Answer

A) True 
 B)False

Question 12

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.F) D) and E)
G) A) and B)

Question 13

Short reflexes of digestion involve the glossopharyngeal and vagus nerves.

Accepted Answer

A) True 
 B)False

Question 14

"Segmentation" within the small intestine refers to the

Accepted Answer

A)  propulsion of material between the segments of the GI tract.
B)  division of function between the different segments of the small intestine.
C)  back-and-forth motion that mixes chyme with glandular secretions.
D)  gastroileal reflex that moves materials from the stomach to the large intestine.E) A) and B)
F) B) and C)

Question 15

Mastication is one component of the mechanical digestion of food.

Accepted Answer

A) True 
 B)False

Question 16

What type of epithelium lines the majority of the oral cavity

Accepted Answer

A)  Keratinized stratified squamous
B)  Nonkeratinized stratified squamous
C)  Pseudostratified ciliated columnar
D)  Keratinized stratified cuboidal
E)  Nonkeratinized stratified cuboidalF) C) and E)
G) B) and C)

Question 17

The lingual salivary glands are

Accepted Answer

A)  unicellulilar endocrine glands.
B)  unicellulilar exocrine glands.
C)  multicellulilar endocrine glands.
D)  multicellulilar exocrine glands.E) None of the above
F) All of the above

Question 18

Which is not a lobe of the liver

Accepted Answer

A)  Right lobe
B)  Caudate lobe
C)  Round lobe
D)  Quadrate lobe
E)  Left lobeF) A) and E)
G) C) and D)

Question 19

The sinusoids of the liver are lined by phagocytic reticuloendothelial cells,also called ___________ cells.

Accepted Answer

The answer of The sinusoids of the liver are lined...

Question 20

The presence of food in the stomach triggers the release of a hormone that stimulates contraction of the pyloric sphincter.Specifically,these events involve release of

Accepted Answer

A)  secretin in the cephalic phase of digestion.
B)  gastrin in the gastric phase of digestion.
C)  CCK in the intestinal phase of digestion.
D)  lipase in the intestinal phase of digestion.
E)  chyle in the secretory phase of digestionF) None of the above
G) D) and E)

Exam 26: Digestive System

The sinusoids of the liver are lined by phagocytic reticuloendothelial cells,also called ___________ cells.

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The lingual salivary glands are

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Which is an accurate description of glucose and sucrose

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Which is not a lobe of the liver

Correct AnswerverifiedShow Answer

Vitamin K and B vitamins produced by bacteria of the large intestine are absorbed into the blood.

Correct AnswerverifiedShow Answer

Lacteals

Correct AnswerverifiedShow Answer

The largest salivary gland is the ________ gland,and its duct opens near the second upper molar.

Correct AnswerverifiedShow Answer

Mastication is one component of the mechanical digestion of food.

Correct AnswerverifiedShow Answer

The wall of the pharynx is formed by three muscle pairs: the superior,middle,and inferior pharyngeal _______________.

Correct AnswerverifiedShow Answer

What type of epithelium lines the majority of the oral cavity

Correct AnswerverifiedShow Answer

Short reflexes of digestion involve the glossopharyngeal and vagus nerves.

Correct AnswerverifiedShow Answer

"Segmentation" within the small intestine refers to the

Correct AnswerverifiedShow Answer

At the pylorus of the stomach,closure of the pyloric sphincter during the multistep process of gastric emptying leads to a reverse current of material;this reverse flow event is known as ___________.

Correct AnswerverifiedShow Answer

The pancreas is part of the alimentary canal.

Correct AnswerverifiedShow Answer

In some digestive reflexes,the facial nerve stimulates salivary glands;the salivary glands are acting as

Correct AnswerverifiedShow Answer

The presence of food in the stomach triggers the release of a hormone that stimulates contraction of the pyloric sphincter.Specifically,these events involve release of

Correct AnswerverifiedShow Answer

-This figure shows the stomach.Which number indicates the fundus

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Peristalsis

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Which cranial nerves innervate the salivary glands

Correct AnswerverifiedShow Answer

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