Question 1

Bile salts are derivatives of cholesterol.

Accepted Answer

A) True 
 B)False

Question 2

Factors in the duodenum influence the rate of gastric emptying.

Accepted Answer

A) True 
 B)False

Question 3

The swallowing center is located in the

Accepted Answer

A)  cerebral cortex 
B)  medulla 
C)  hypothalamus 
D)  throat 
E)  spinal cord 
A)  cerebral cortex 
B)  medulla 
C)  hypothalamus 
D)  throat 
E)  spinal cord

Question 4

Chewing increases which of the following secretions?

Accepted Answer

A)  Salivary secretion 
B)  Gastric secretion 
C)  Pancreatic secretion 
D)  Salivary secretion and Gastric secretion 
E)  All of these 
A)  Salivary secretion 
B)  Gastric secretion 
C)  Pancreatic secretion 
D)  Salivary secretion and Gastric secretion 
E)  All of these

Question 5

Which statement is incorrect?

Accepted Answer

A)  Absorption of salt and water converts the colonic contents into fecal material. 
B)  Colonic bacteria digest cellulose for their own growth and reproduction. 
C)  When mass movements of the colon propel feces into the rectum, stimulation of the stretch receptors in the rectal wall reflexively causes contraction of the internal and external anal sphincters to prevent defecation from occurring until an opportune time. 
D)  No digestive enzymes are secreted by the colon. 
E)  Haustral contractions in the colon are a type of mixing motility. 
A)  Absorption of salt and water converts the colonic contents into fecal material. 
B)  Colonic bacteria digest cellulose for their own growth and reproduction. 
C)  When mass movements of the colon propel feces into the rectum, stimulation of the stretch receptors in the rectal wall reflexively causes contraction of the internal and external anal sphincters to prevent defecation from occurring until an opportune time. 
D)  No digestive enzymes are secreted by the colon. 
E)  Haustral contractions in the colon are a type of mixing motility.

Question 6

The parietal cells secrete both pepsinogen and intrinsic factor.

Accepted Answer

A) True 
 B)False

Question 7

The principal clinical manifestation of pancreatic exocrine insufficiency is incomplete protein digestion resulting from the deficiency of the powerful pancreatic proteolytic enzymes.

Accepted Answer

A) True 
 B)False

Question 8

Migration of a new intestinal epithelial cell from the crypt at the base of the villus to the tip of the villus requires about three weeks.

Accepted Answer

A) True 
 B)False

Question 9

The presence of protein in the stomach stimulates the release of histamine, which in turn promotes HCl and pepsinogen secretion.

Accepted Answer

A) True 
 B)False

Question 10

Complete each of the following statments.
The ____________________ is the shortest part of the small intestine.

Accepted Answer

The answer of Complete each of the following statments.
The ____________________...

Question 11

Which of the following substances is a product from the chemical breakdown of starch?

Accepted Answer

A)  amino acids 
B)  glucose 
C)  monoglycerides 
D)  bile salts 
E)  fatty acids 
A)  amino acids 
B)  glucose 
C)  monoglycerides 
D)  bile salts 
E)  fatty acids

Question 12

Receptive relaxation refers to relaxation of the

Accepted Answer

A)  pharyngoesophageal sphincter during swallowing 
B)  pyloric sphincter when the duodenum is prepared to receive the chyme 
C)  external anal sphincter when the individual is receptive to the defecation reflex 
D)  stomach as it starts to fill, thereby allowing an increase in volume with very little increase in pressure 
E)  none of these 
A)  pharyngoesophageal sphincter during swallowing 
B)  pyloric sphincter when the duodenum is prepared to receive the chyme 
C)  external anal sphincter when the individual is receptive to the defecation reflex 
D)  stomach as it starts to fill, thereby allowing an increase in volume with very little increase in pressure 
E)  none of these

Question 13

The ileocecal juncture serves as a barrier to prevent bacteria-laden contents of the large intestine from contaminating the small intestine.

Accepted Answer

A) True 
 B)False

Question 14

The large intestine consists of the duodenum, jejunum, and ileum.

Accepted Answer

A) True 
 B)False

Question 15

Pernicious anemia can occur when:

Accepted Answer

A)  The stomach has been removed. 
B)  The terminal ileum has been removed. 
C)  There is a deficiency of intrinsic factor. 
D)  All of these 
E)  The stomach has been removed and there is a deficiency of intrinsic factor. 
A)  The stomach has been removed. 
B)  The terminal ileum has been removed. 
C)  There is a deficiency of intrinsic factor. 
D)  All of these 
E)  The stomach has been removed and there is a deficiency of intrinsic factor.

Question 16

Fats are digested to

Accepted Answer

A)  amino acids 
B)  cellulose 
C)  fatty acids and glycerol 
D)  fructose 
E)  monosaccharides 
A)  amino acids 
B)  cellulose 
C)  fatty acids and glycerol 
D)  fructose 
E)  monosaccharides

Question 17

During vomiting

Accepted Answer

A)  The diaphragm contracts. 
B)  The abdominal muscles contract. 
C)  The stomach contracts. 
D)  The diaphragm and the abdominal muscles contract. 
E)  The abdominal muscles and the stomach contracts. 
A)  The diaphragm contracts. 
B)  The abdominal muscles contract. 
C)  The stomach contracts. 
D)  The diaphragm and the abdominal muscles contract. 
E)  The abdominal muscles and the stomach contracts.

Question 18

Which of the following statements concerning HCl secretion by the stomach is correct?

Accepted Answer

A)  HCl inactivates salivary amylase and the pancreatic enzymes. 
B)  HCl activates pepsinogen. 
C)  It establishes a low pH in the stomach. 
D)  Oxyntic cells are responsible for it. 
E)  All of these. 
A)  HCl inactivates salivary amylase and the pancreatic enzymes. 
B)  HCl activates pepsinogen. 
C)  It establishes a low pH in the stomach. 
D)  Oxyntic cells are responsible for it. 
E)  All of these.

Question 19

The major chemical digestive activity occurring in the stomach is

Accepted Answer

A)  digestion of starch 
B)  digestion of protein 
C)  digestion of fat 
D)  absorption of monosaccharides 
E)  digestion of vitamins 
A)  digestion of starch 
B)  digestion of protein 
C)  digestion of fat 
D)  absorption of monosaccharides 
E)  digestion of vitamins

Question 20

Which of the following is not a component of saliva?

Accepted Answer

A)  amylase 
B)  mucus 
C)  pepsin 
D)  lysozyme 
E)  water 
A)  amylase 
B)  mucus 
C)  pepsin 
D)  lysozyme 
E)  water

Exam 16: A--The Digestive System

Bile salts are derivatives of cholesterol.

Factors in the duodenum influence the rate of gastric emptying.

The swallowing center is located in the

Chewing increases which of the following secretions?

Which statement is incorrect?

The parietal cells secrete both pepsinogen and intrinsic factor.

The principal clinical manifestation of pancreatic exocrine insufficiency is incomplete protein digestion resulting from the deficiency of the powerful pancreatic proteolytic enzymes.

Migration of a new intestinal epithelial cell from the crypt at the base of the villus to the tip of the villus requires about three weeks.

The presence of protein in the stomach stimulates the release of histamine, which in turn promotes HCl and pepsinogen secretion.

Complete each of the following statments. The ____________________ is the shortest part of the small intestine.

Which of the following substances is a product from the chemical breakdown of starch?

Receptive relaxation refers to relaxation of the

The ileocecal juncture serves as a barrier to prevent bacteria-laden contents of the large intestine from contaminating the small intestine.

The large intestine consists of the duodenum, jejunum, and ileum.

Pernicious anemia can occur when:

Fats are digested to

During vomiting

Which of the following statements concerning HCl secretion by the stomach is correct?

The major chemical digestive activity occurring in the stomach is

Which of the following is not a component of saliva?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

A--The Respiratory System

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

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