Question 1

What structures supplies autonomic nerves to the muscularis tunic?

Accepted Answer

A) Meissner's plexus 
B) Auterbach's plexus 
C) myenteric plexus 
D) Both Auterbach's plexus and myenteric plexus are correct. 
A) Meissner's plexus 
B) Auterbach's plexus 
C) myenteric plexus 
D) Both Auterbach's plexus and myenteric plexus are correct.

Question 2

The majority of hydrolysis of disaccharides occurs by the actions of enzymes found

Accepted Answer

A) in the pancreatic juice. 
B) in the brush border of the small intestine. 
C) in saliva. 
D) in the gastric mucosa. 
A) in the pancreatic juice. 
B) in the brush border of the small intestine. 
C) in saliva. 
D) in the gastric mucosa.

Question 3

What is the function of Paneth cells of the small intestine?

Accepted Answer

A) produce mucus 
B) divide by mitosis to make new mucosa cells 
C) produce lysozyme and antimicrobial peptides 
D) produce digestive enzymes 
A) produce mucus 
B) divide by mitosis to make new mucosa cells 
C) produce lysozyme and antimicrobial peptides 
D) produce digestive enzymes

Question 4

Which tunic of the GI tract is vascular and has many nerves and glands?

Accepted Answer

A) mucosa 
B) submucosa 
C) muscularis 
D) serosa 
A) mucosa 
B) submucosa 
C) muscularis 
D) serosa

Question 5

___________ is a principal bile acid.

Accepted Answer

A) Chenodeoxycholic acid. 
B) Lactic acid. 
C) Uric acid. 
D) Both lactic acid and uric aciD. 
A) Chenodeoxycholic acid. 
B) Lactic acid. 
C) Uric acid. 
D) Both lactic acid and uric aciD.

Question 6

The lining of the intestine provides a physical barrier against microorganisms and their toxins.

Accepted Answer

A) True 
 B)False

Question 7

What allows the intestinal microbiota to live in the large intestine?

Accepted Answer

A) protection by innate and adaptive immune systems 
B) the anaerobic environment 
C) availability of nutrients 
D) All of the choices are correct. 
A) protection by innate and adaptive immune systems 
B) the anaerobic environment 
C) availability of nutrients 
D) All of the choices are correct.

Question 8

The outer surface bulges of the large intestine are called

Accepted Answer

A) crypts. 
B) cecum. 
C) haustra. 
D) colon. 
A) crypts. 
B) cecum. 
C) haustra. 
D) colon.

Question 9

The primary function of the large intestine is

Accepted Answer

A) water and electrolyte reabsorption. 
B) mineral absorption. 
C) hormone degradation. 
D) degrading toxins. 
A) water and electrolyte reabsorption. 
B) mineral absorption. 
C) hormone degradation. 
D) degrading toxins.

Question 10

The brush border is a term used to describe the mucosa of the small intestine.

Accepted Answer

A) True 
 B)False

Question 11

Wavelike muscular contraction of the gastrointestinal tract is called

Accepted Answer

A) peristalsis. 
B) segmentation. 
C) deglutition. 
D) mastication. 
A) peristalsis. 
B) segmentation. 
C) deglutition. 
D) mastication.

Question 12

Slow wave depolarization triggers depolarization of smooth muscle by opening voltage-gated ________ channels.

Accepted Answer

A) K+ 
B) Na+ 
C) Ca2+ 
D) Ach 
A) K+ 
B) Na+ 
C) Ca2+ 
D) Ach

Question 13

The negative feedback control of HCl secretion in the gastric phase of gastric regulation is mainly by

Accepted Answer

A) decline in gastrin secretion. 
B) increase in gastrin secretion. 
C) increase in somatostatin secretion. 
D) Both decrease in gastrin secretion and increase in somatostatin secretion. 
A) decline in gastrin secretion. 
B) increase in gastrin secretion. 
C) increase in somatostatin secretion. 
D) Both decrease in gastrin secretion and increase in somatostatin secretion.

Question 14

Exopeptidases include

Accepted Answer

A) trypsin. 
B) aminopeptidase. 
C) elastase. 
D) chymotrypsin. 
A) trypsin. 
B) aminopeptidase. 
C) elastase. 
D) chymotrypsin.

Question 15

Which of the following gastrointestinal hormones is NOT secreted by the small intestine?

Accepted Answer

A) secretin 
B) gastric inhibitory peptide 
C) gastrin 
D) cholecystokinin 
A) secretin 
B) gastric inhibitory peptide 
C) gastrin 
D) cholecystokinin

Question 16

Anemia often results due to a lack of intrinsic factor.

Accepted Answer

A) True 
 B)False

Question 17

Aldosterone affects salt and water absorption in the intestine.

Accepted Answer

A) True 
 B)False

Question 18

Bile salts are derivatives of

Accepted Answer

A) sodium chloride. 
B) hemoglobin. 
C) bilirubin. 
D) cholesterol. 
A) sodium chloride. 
B) hemoglobin. 
C) bilirubin. 
D) cholesterol.

Question 19

Histamine release will cause more acid to be released in the stomach.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is NOT true of 5-hydroxytryptamine?

Accepted Answer

A) it is secreted by ECL cells of the intestinal mucosa 
B) stimulates intrinsic afferent to activate motor neurons for peristalsis 
C) stimulates secretion of Cl- and water 
D) All of the choices are not true. 
A) it is secreted by ECL cells of the intestinal mucosa 
B) stimulates intrinsic afferent to activate motor neurons for peristalsis 
C) stimulates secretion of Cl- and water 
D) All of the choices are not true.

What structures supplies autonomic nerves to the muscularis tunic?

The majority of hydrolysis of disaccharides occurs by the actions of enzymes found

What is the function of Paneth cells of the small intestine?

Which tunic of the GI tract is vascular and has many nerves and glands?

___________ is a principal bile acid.

The lining of the intestine provides a physical barrier against microorganisms and their toxins.

What allows the intestinal microbiota to live in the large intestine?

The outer surface bulges of the large intestine are called

The primary function of the large intestine is

The brush border is a term used to describe the mucosa of the small intestine.

Wavelike muscular contraction of the gastrointestinal tract is called

Slow wave depolarization triggers depolarization of smooth muscle by opening voltage-gated ________ channels.

The negative feedback control of HCl secretion in the gastric phase of gastric regulation is mainly by

Exopeptidases include

Which of the following gastrointestinal hormones is NOT secreted by the small intestine?

Anemia often results due to a lack of intrinsic factor.

Aldosterone affects salt and water absorption in the intestine.

Bile salts are derivatives of

Histamine release will cause more acid to be released in the stomach.

Which of the following is NOT true of 5-hydroxytryptamine?

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output,Blood Flow,and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

Regulation and Metabolism

Reproduction

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Exam 18: The Digestive System

What structures supplies autonomic nerves to the muscularis tunic?

The majority of hydrolysis of disaccharides occurs by the actions of enzymes found

What is the function of Paneth cells of the small intestine?

Which tunic of the GI tract is vascular and has many nerves and glands?

___________ is a principal bile acid.

The lining of the intestine provides a physical barrier against microorganisms and their toxins.

What allows the intestinal microbiota to live in the large intestine?

The outer surface bulges of the large intestine are called

The primary function of the large intestine is

The brush border is a term used to describe the mucosa of the small intestine.

Wavelike muscular contraction of the gastrointestinal tract is called

Slow wave depolarization triggers depolarization of smooth muscle by opening voltage-gated ________ channels.

The negative feedback control of HCl secretion in the gastric phase of gastric regulation is mainly by

Exopeptidases include

Which of the following gastrointestinal hormones is NOT secreted by the small intestine?

Anemia often results due to a lack of intrinsic factor.

Aldosterone affects salt and water absorption in the intestine.

Bile salts are derivatives of

Histamine release will cause more acid to be released in the stomach.

Which of the following is NOT true of 5-hydroxytryptamine?

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output,Blood Flow,and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

Regulation and Metabolism

Reproduction

Filters