Question 1

A genetic mutation prevents the parietal cells of the gastric glands from secreting their typical products. What effect would this have on digestion within the stomach?

Accepted Answer

A)  The stomach would not produce a protective mucus coating and would digest itself.
B)  Somatostatin would be secreted, so all digestion would be halted.
C)  Pepsinogen would not be secreted, so protein digestion would not occur within the stomach.
D)  Hydrochloric acid would not be produced, so pepsinogen would not be activated to form pepsin.E) A) and B)
F) A) and C)

Question 2

The organs of the alimentary canal are innervated by sympathetic as well as by parasympathetic nerve fibers.

Accepted Answer

A) True 
 B)False

Question 3

Most recipients of cholecystectomies have difficulty digesting fatty foods after the procedure. This is due to the lack of emulsification of lipids during the process of digestion, which makes it harder for lipase to access and break down fats. This means that ________ are not being efficiently released into the small intestine during digestion.

Accepted Answer

The answer of Most recipients of cholecystectomies have difficulty digesting...

Question 4

________ ions help to regulate the pH of saliva.

Accepted Answer

The answer of ________ ions help to regulate the pH...

Question 5

The functions of saliva include

Accepted Answer

A)  moistening, binding and building up food particles; beginning chemical digestion of carbohydrates; and cleansing the esophagus.
B)  moistening, binding and dissolving food particles; beginning chemical digestion of proteins; and cleansing the esophagus.
C)  moistening, binding and building up food particles; beginning mechanical digestion of fats; and cleansing the teeth and mouth.
D)  moistening, binding and dissolving food particles; beginning chemical digestion of carbohydrates; and cleansing the teeth and mouth.E) All of the above
F) A) and D)

Question 6

Which is not an involuntary part of the swallowing reflex?

Accepted Answer

A)  Muscles pull the pharynx upward toward the food.
B)  The epiglottis closes off the top of the trachea.
C)  The tongue presses against the uvula and soft palate.
D)  The tongue rolls chewed food into a bolus and pushes it to the oropharynx.E) B) and C)
F) A) and B)

Question 7

The pyloric sphincter serves as a valve that controls the movement of food between the esophagus and stomach.

Accepted Answer

A) True 
 B)False

Question 8

Loperamide is a medication used to slow and stop diarrhea. It inhibits nervous signalling to the large intestine, relaxing the smooth muscles within the intestinal wall and preventing intestinal contents from moving forward. The large peristaltic waves inhibited by loperamide are________.

Accepted Answer

The answer of Loperamide is a medication used to slow...

Question 9

An extracorporeal liver assist device was surgically implanted into Sam. This device is very similar to

Accepted Answer

A)  an artificial heart.
B)  artificial skin.
C)  kidney dialysis.
D)  a blood transfusion.E) B) and C)
F) A) and D)

Question 10

Large, fixed phagocytes in the lining of the hepatic sinusoids are ________ cells.

Accepted Answer

The answer of Large, fixed phagocytes in the lining of...

Question 11

The ________ is the part of the digestive tract that has the most lymph nodules and bacteria.

Accepted Answer

A)  duodenum
B)  jejunum
C)  ileum
D)  colonE) A) and B)
F) A) and C)

Question 12

The cecum is located at the inferior end of the descending colon.

Accepted Answer

A) True 
 B)False

Question 13

Chisel-shaped teeth are ________.

Accepted Answer

The answer of Chisel-shaped teeth are ________....

Question 14

The hormone secretin

Accepted Answer

A)  converts trypsinogen to trypsin.
B)  activates chymotrypsin.
C)  stimulates release of pancreatic juice.
D)  inhibits the action of pancreatic lipase.E) None of the above
F) All of the above

Question 15

The digestive system

Accepted Answer

A)  ingests food, propels food, mechanically and chemically breaks down food, absorbs nutrients, and defecates the remainder.
B)  mechanically and chemically assembles food from absorbed nutrients.
C)  sends cellular debris to lysosomes.
D)  absorbs nutrients in the mouth, pharynx, esophagus and stomach, and releases nutrients in the intestines.E) A) and D)
F) None of the above

Question 16

David has sustained severe damage to his liver in a car accident. Digestion of which nutrient will be most affected?

Accepted Answer

A)  Carbohydrates
B)  Lipids
C)  Proteins
D)  VitaminsE) None of the above
F) A) and D)

Question 17

Peristalsis mixes food in small segments of the alimentary canal with digestive enzymes.

Accepted Answer

A) True 
 B)False

Question 18

The enterogastric reflex begins in the stomach and ends in the small intestine.

Accepted Answer

A) True 
 B)False

Question 19

The movement of chyme through the small intestine is increased by parasympathetic impulses and is inhibited by sympathetic impulses.

Accepted Answer

A) True 
 B)False

Question 20

Which is not a factor that may affect the rate of absorption of certain medications with age?

Accepted Answer

A)  Slowing of the exit of chyme from the stomach
B)  Slowing peristalsis
C)  Thinning of the stomach lining
D)  Loss of power in masticationE) All of the above
F) A) and B)

Exam 17: Digestive System

________ ions help to regulate the pH of saliva.

Correct Answer
verified

The hormone secretin

Correct Answer
verified

Correct Answer
verified

The ________ is the part of the digestive tract that has the most lymph nodules and bacteria.

Correct Answer
verified

The cecum is located at the inferior end of the descending colon.

Correct Answer
verified

Chisel-shaped teeth are ________.

Correct Answer
verified

An extracorporeal liver assist device was surgically implanted into Sam. This device is very similar to

Correct Answer
verified

The functions of saliva include

Correct Answer
verified

A genetic mutation prevents the parietal cells of the gastric glands from secreting their typical products. What effect would this have on digestion within the stomach?

Correct Answer
verified

Which is not an involuntary part of the swallowing reflex?

Correct Answer
verified

Which is not a factor that may affect the rate of absorption of certain medications with age?

Correct Answer
verified

Peristalsis mixes food in small segments of the alimentary canal with digestive enzymes.

Correct Answer
verified

Loperamide is a medication used to slow and stop diarrhea. It inhibits nervous signalling to the large intestine, relaxing the smooth muscles within the intestinal wall and preventing intestinal contents from moving forward. The large peristaltic waves inhibited by loperamide are________.

Correct Answer
verified

The pyloric sphincter serves as a valve that controls the movement of food between the esophagus and stomach.

Correct Answer
verified

The movement of chyme through the small intestine is increased by parasympathetic impulses and is inhibited by sympathetic impulses.

Correct Answer
verified

The digestive system

Correct Answer
verified

Large, fixed phagocytes in the lining of the hepatic sinusoids are ________ cells.

Correct Answer
verified

The enterogastric reflex begins in the stomach and ends in the small intestine.

Correct Answer
verified

The organs of the alimentary canal are innervated by sympathetic as well as by parasympathetic nerve fibers.

Correct Answer
verified

David has sustained severe damage to his liver in a car accident. Digestion of which nutrient will be most affected?

Correct Answer
verified

Exam 17: Digestive System

________ ions help to regulate the pH of saliva.

Correct AnswerverifiedShow Answer

The hormone secretin

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The ________ is the part of the digestive tract that has the most lymph nodules and bacteria.

Correct AnswerverifiedShow Answer

The cecum is located at the inferior end of the descending colon.

Correct AnswerverifiedShow Answer

Chisel-shaped teeth are ________.

Correct AnswerverifiedShow Answer

An extracorporeal liver assist device was surgically implanted into Sam. This device is very similar to

Correct AnswerverifiedShow Answer

The functions of saliva include

Correct AnswerverifiedShow Answer

A genetic mutation prevents the parietal cells of the gastric glands from secreting their typical products. What effect would this have on digestion within the stomach?

Correct AnswerverifiedShow Answer

Which is not an involuntary part of the swallowing reflex?

Correct AnswerverifiedShow Answer

Which is not a factor that may affect the rate of absorption of certain medications with age?

Correct AnswerverifiedShow Answer

Peristalsis mixes food in small segments of the alimentary canal with digestive enzymes.

Correct AnswerverifiedShow Answer

Loperamide is a medication used to slow and stop diarrhea. It inhibits nervous signalling to the large intestine, relaxing the smooth muscles within the intestinal wall and preventing intestinal contents from moving forward. The large peristaltic waves inhibited by loperamide are________.

Correct AnswerverifiedShow Answer

The pyloric sphincter serves as a valve that controls the movement of food between the esophagus and stomach.

Correct AnswerverifiedShow Answer

The movement of chyme through the small intestine is increased by parasympathetic impulses and is inhibited by sympathetic impulses.

Correct AnswerverifiedShow Answer

The digestive system

Correct AnswerverifiedShow Answer

Large, fixed phagocytes in the lining of the hepatic sinusoids are ________ cells.

Correct AnswerverifiedShow Answer

The enterogastric reflex begins in the stomach and ends in the small intestine.

Correct AnswerverifiedShow Answer

The organs of the alimentary canal are innervated by sympathetic as well as by parasympathetic nerve fibers.

Correct AnswerverifiedShow Answer

David has sustained severe damage to his liver in a car accident. Digestion of which nutrient will be most affected?

Correct AnswerverifiedShow Answer

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