Digestive System Disorders

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Question 1
Free
Multiple Choice

Which of the following cells in the gastric mucosa produce intrinsic factor and hydrochloric acid?

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A

Parietal cells

B

Chief cells

C

Mucous cells

D

Gastrin cells

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Question 2
Free
Multiple Choice

Which of the following is the primary site for absorption of nutrients?

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A

Stomach

B

Duodenum

C

Ileum

D

Ascending colon

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Question 3
Free
Multiple Choice

When highly acidic chyme enters the duodenum, which hormone stimulates the release of pancreatic secretions that contains very high bicarbonate ion content?

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A

Gastrin

B

Secretin

C

Cholecystokinin

D

Histamine

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Question 4
Free
Multiple Choice

Which of the following breaks protein down into peptides?

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A

Amylase

B

Peptidase

C

Lactase

D

Trypsin

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Question 5
Free
Multiple Choice

In which structure is oxygenated blood (arterial) mixed with unoxygenated blood (venous) so as to support the functions of the structure?

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A

Pancreas

B

Liver

C

Small intestine

D

Spleen

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Question 6
Multiple Choice

Which of the following stimulates increased peristalsis and secretions in the digestive tract?

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A
Sympathetic nervous system
B
Vagus nerve
C
Increased saliva
D
Absence of food in the system
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Question 7
Multiple Choice

Which of the following is contained in pancreatic exocrine secretions?

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A
Bicarbonate ion
B
Hydrochloric acid
C
Activated digestive enzymes
D
Insulin
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Question 8
Multiple Choice

The presence of food in the intestine stimulates intestinal activity but inhibits gastric activity through the:

Choose correct answer/s
A
defecation reflex.
B
enterogastric reflex.
C
vomiting reflex.
D
autodigestive reflex.
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Question 9
Multiple Choice

Which of the following processes is likely to occur in the body immediately after a meal?

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A
Lipolysis
B
Ketogenesis
C
Gluconeogenesis
D
Glycogenesis
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Question 10
Multiple Choice

What does the term gluconeogenesis refer to?

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A
Breakdown of glycogen to produce glucose
B
Conversion of excess glucose into glycogen for storage
C
Formation of glucose from protein and fat
D
Breakdown of glucose into carbon dioxide and water
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Question 11
Multiple Choice

Normally, proteins or amino acids are required to produce all of the following EXCEPT:

Choose correct answer/s
A
peptide hormones.
B
clotting factors and antibodies.
C
cellular energy.
D
hemoglobin.
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Question 12
Multiple Choice

Which of the following statements applies to bile salts?

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A
They give feces the characteristic brown color.
B
They are enzymes used to break down fats into free fatty acids.
C
They emulsify lipids and lipid-soluble vitamins.
D
They are excreted in the feces.
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Question 13
Multiple Choice

The visceral peritoneum:

Choose correct answer/s
A
lines the abdominal wall.
B
hangs from the stomach over the loops of small intestine.
C
contains many pain receptors.
D
forms the outer covering of the stomach.
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Question 14
Multiple Choice

The early stage of vomiting causes:

Choose correct answer/s
A
metabolic alkalosis.
B
metabolic acidosis.
C
increased respirations.
D
increased excretion of hydrogen ions.
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Question 15
Multiple Choice

Yellow or greenish stained vomitus usually indicates the presence of:

Choose correct answer/s
A
bile.
B
blood.
C
protein.
D
bacteria.
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Question 16
Multiple Choice

Small, hidden amounts of blood in stool are referred to as:

Choose correct answer/s
A
melena.
B
occult blood.
C
frank blood.
D
hematemesis.
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Question 17
Multiple Choice

Severe vomiting can lead to metabolic acidosis because of increased:

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A
ketones produced.
B
CO2 retained in the lungs and kidneys.
C
hypovolemia and lactic acid production.
D
metabolic rate.
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Question 18
Multiple Choice

Which of the following applies to the act of swallowing?

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A
It requires coordination of cranial nerves V, IX, X, and XII.
B
It is entirely voluntary.
C
It is controlled by a center in the hypothalamus.
D
It does not affect respiration.
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Question 19
Multiple Choice

What does the defecation reflex require?

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A
Stimulation by the sympathetic nervous system
B
Contraction of the internal anal sphincter
C
Coordination through the sacral spinal cord
D
Voluntary relaxation of pelvic muscles
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Question 20
Multiple Choice

What is the definition of dysphagia?

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A
A herniation of the gastric mucosa through a segment of weakened muscle
B
Recurrent reflux of chyme into the esophagus
C
Absence of a connection of the esophagus to the stomach
D
Difficulty in swallowing
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