Question 1

What is the primary digestive function of the pancreas?

Accepted Answer

A)  to produce hormones that increase digestion in the small intestine
B)  to produce acid for the digestion of proteins in the stomach
C)  to produce mucus for the ease of feces passing through the rectum
D)  to produce bile for the digestion of lipids
E)  to produce buffers and enzymes for the digestion of starches,lipids,nucleic acids,and proteins

Question 2

At what point in the large intestine does the epidermis change from stratified squamous non-keratinized tissue like the oral cavity to stratified squamous keratinized tissue like the skin?

Accepted Answer

A)  descending colon
B)  internal anal sphincter
C)  anus
D)  rectum
E)  sigmoid colon

Question 3

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

Accepted Answer

A)  segmentations.
B)  pendular movements.
C)  peristalsis.
D)  churning movements.
E)  mastication.

Question 4

Name the major functions of the large intestine.

Accepted Answer

A)  producing digestive enzymes,producing acidic chyme,digesting proteins,fats and carbohydrates
B)  reabsorbing water and compacting material into feces,absorbing vitamins,and storing fecal material
C)  detoxifying alcohol and drugs,producing bile,storing bile
D)  producing buffers,absorbing vitamins,and storing bile
E)  emulsifying lipids,synthesizing clotting factors,and absorbing and inactivating lipid-soluble drugs

Question 5

The part of the digestive tract that plays the primary role in chemical digestion and nutrient absorption is the

Accepted Answer

A)  cecum.
B)  jejunum.
C)  stomach.
D)  duodenum.
E)  colon.

Question 6

A viral infection that often involves the parotid glands,which swell noticeably,is

Accepted Answer

A)  gastric ulceration.
B)  hepatitis.
C)  cirrhosis.
D)  mumps.
E)  HIV.

Question 7

Which of these descriptions best matches the term "submucosal plexus"?

Accepted Answer

A)  component of mucosa
B)  includes a sensory neural network
C)  secretes a watery fluid
D)  coordinates activity of the muscular layer
E)  loose connective tissue layer containing blood vessels

Question 8

Define ingestion.

Accepted Answer

A)  The movement of nutrients across the digestive epithelium and into the bloodstream.
B)  The discharge of feces.
C)  The enzymatic breakdown of food.
D)  Entry of food and liquids into the digestive tract through the mouth.
E)  The crushing and shearing of food.

Question 9

List the accessory organs of the digestive system.

Accepted Answer

A)  oral cavity,teeth,tongue,salivary glands,esophagus
B)  oral cavity,salivary glands,esophagus,stomach,liver
C)  teeth,tongue,salivary glands,liver,gallbladder,pancreas
D)  teeth,tongue,stomach,liver,gallbladder,large intestine
E)  pharynx,esophagus,stomach,liver,gallbladder,pancreas

Question 10

All of the following enzymes are secreted by the pancreas except

Accepted Answer

A)  trypsin.
B)  amylase.
C)  nuclease.
D)  chymotrypsin.
E)  insulin.

Question 11

Figure 21-1
-Which structure helps the stomach to stretch as it fills with food?

Accepted Answer

A)  3
B)  4
C)  5
D)  6
E)  9

Question 12

Aggregated lymphoid nodules are characteristic of the

Accepted Answer

A)  stomach.
B)  duodenum.
C)  jejunum.
D)  ileum.
E)  colon.

Question 13

An enzyme secreted by the gastric mucosa of a newborn that assists in the digestion of milk proteins is

Accepted Answer

A)  pepsin.
B)  trypsin.
C)  gastrin.
D)  rennin.
E)  cholecystokinin.

Question 14

Mary had most of her stomach surgically removed in an effort to overcome obesity.As a result,Mary can expect to be at risk for

Accepted Answer

A)  protein malnutrition.
B)  vitamin B12 deficiency.
C)  diarrhea.
D)  dehydration.
E)  an ulcer.

Question 15

________ are also known as canines.

Accepted Answer

A)  Bicuspids
B)  Incisors
C)  Molars
D)  Secondary teeth
E)  Cuspids

Question 16

The portion of the stomach that is superior to the junction between the stomach and the esophagus is the

Accepted Answer

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

Question 17

Figure 22-2
-Which structure controls the contraction of the muscular layer?

Accepted Answer

A)  muscularis mucosae (2) 
B)  submucosal plexus (8) 
C)  circular layer of smooth muscle (9) 
D)  myenteric plexus (10) 
E)  longitudinal layer of smooth muscle (11)

Question 18

The intestinal hormone that stimulates the pancreas to release enzymes and buffers is

Accepted Answer

A)  vasoactive intestinal peptide (VIP) .
B)  secretin.
C)  lipase.
D)  gastric inhibitory peptide (GIP) .
E)  gastrin.

Question 19

Distinguish between chemical digestion and absorption.

Accepted Answer

A)  Chemical digestion involves the entry of food and liquid into the digestive tract,whereas absorption involves the discharge of indigestible food into material waste.
B)  Chemical digestion involves the breakdown of food,whereas absorption involves the movement of nutrients across the digestive epithelium into the interstitial fluid.
C)  Chemical digestion involves the discharge of indigestible food into material waste,whereas absorption involves the entry to food and liquid into the digestive tract.
D)  Chemical digestion involves the crushing and shearing of food,whereas absorption involves the movement of nutrients across the digestive epithelium into the interstitial fluid.
E)  Chemical digestion involves the movement of food along the digestive tract,whereas absorption involves the secretion of acids,enzymes,and buffers.

Question 20

Which of the following is classified as being either squamous or columnar?

Accepted Answer

A)  submucosa
B)  mucosal epithelium
C)  muscularis mucosae
D)  lamina propria
E)  mucosa

Exam 22: The Digestive System

Aggregated lymphoid nodules are characteristic of the

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

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The portion of the stomach that is superior to the junction between the stomach and the esophagus is the

Correct AnswerverifiedShow Answer

An enzyme secreted by the gastric mucosa of a newborn that assists in the digestion of milk proteins is

Correct AnswerverifiedShow Answer

The part of the digestive tract that plays the primary role in chemical digestion and nutrient absorption is the

Correct AnswerverifiedShow Answer

A viral infection that often involves the parotid glands,which swell noticeably,is

Correct AnswerverifiedShow Answer

What is the primary digestive function of the pancreas?

Correct AnswerverifiedShow Answer

________ are also known as canines.

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All of the following enzymes are secreted by the pancreas except

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List the accessory organs of the digestive system.

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Define ingestion.

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Figure 22-2 -Which structure controls the contraction of the muscular layer?

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Figure 21-1 -Which structure helps the stomach to stretch as it fills with food?

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Distinguish between chemical digestion and absorption.

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Which of these descriptions best matches the term "submucosal plexus"?

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Mary had most of her stomach surgically removed in an effort to overcome obesity.As a result,Mary can expect to be at risk for

Correct AnswerverifiedShow Answer

Name the major functions of the large intestine.

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At what point in the large intestine does the epidermis change from stratified squamous non-keratinized tissue like the oral cavity to stratified squamous keratinized tissue like the skin?

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Which of the following is classified as being either squamous or columnar?

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The intestinal hormone that stimulates the pancreas to release enzymes and buffers is

Correct AnswerverifiedShow Answer

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