Question 1

Figure 23.2
Using Figure 23.2, match the following:
-Absorptive cells that line the intestinal tract.

Accepted Answer

A) E 
B) C 
C) B 
D) D 
E) A 
A) E 
B) C 
C) B 
D) D 
E) A

Question 2

Why is it necessary for the stomach contents to be so acidic? How does the stomach protect itself from digestion?

Accepted Answer

HCl is necessary for the activation and

Question 3

The peritoneum is the most extensive serous membrane in the body.

Accepted Answer

A) True 
 B)False

Question 4

The function of the hepatic portal circulation is to ________.

Accepted Answer

A)  return glucose to the general circulation when blood sugar is low 
B)  carry toxins to the kidney for disposal through the urinary tract 
C)  distribute hormones throughout the body 
D)  collect absorbed nutrients for metabolic processing in the liver 
A)  return glucose to the general circulation when blood sugar is low 
B)  carry toxins to the kidney for disposal through the urinary tract 
C)  distribute hormones throughout the body 
D)  collect absorbed nutrients for metabolic processing in the liver

Question 5

Match the following:
-Increases HCl secretion and stimulates contraction of intestinal muscle.

Accepted Answer

A) Secretin 
B) Cholecystokinin 
C) Gastric Inhibitory Peptide 
D) Gastrin 
A) Secretin 
B) Cholecystokinin 
C) Gastric Inhibitory Peptide 
D) Gastrin

Question 6

The dental formula for an adult is 2-1-2-3.What does the 1 stand for?

Accepted Answer

A)  premolar tooth 
B)  canine tooth 
C)  molar tooth 
D)  incisor tooth 
A)  premolar tooth 
B)  canine tooth 
C)  molar tooth 
D)  incisor tooth

Question 7

Figure 23.1
Using Figure 23.1, match the following:
-Mucosa.

Accepted Answer

A) A 
B) D 
C) B 
D) C 
A) A 
B) D 
C) B 
D) C

Question 8

The ducts that deliver bile and pancreatic juice from the liver and pancreas,respectively,unite to form the ________.

Accepted Answer

A)  hepatopancreatic ampulla 
B)  bile canaliculus 
C)  pancreatic acini 
D)  portal vein 
A)  hepatopancreatic ampulla 
B)  bile canaliculus 
C)  pancreatic acini 
D)  portal vein

Question 9

All but one of the following is a function of the low pH found in the stomach.Select the description below that does not reflect a role of stomach acid.

Accepted Answer

A)  The stomach's acid catabolically breaks down food stuffs in preparation for absorption. 
B)  Stomach acid denatures proteins making the poly peptide chain more accessible to pepsin digestive enzymes. 
C)  Many potentially harmful bacteria will be prevented entry to the small intestine by stomach acid. 
D)  Low pH converts pepsinogen to its active form of pepsin, preventing the protease enzyme from digesting the cells that produce it. 
A)  The stomach's acid catabolically breaks down food stuffs in preparation for absorption. 
B)  Stomach acid denatures proteins making the poly peptide chain more accessible to pepsin digestive enzymes. 
C)  Many potentially harmful bacteria will be prevented entry to the small intestine by stomach acid. 
D)  Low pH converts pepsinogen to its active form of pepsin, preventing the protease enzyme from digesting the cells that produce it.

Question 10

Generally the hormones secretin and cholecystokinin which are released by duodenal enteroendocrine cells will ________.

Accepted Answer

A)  decrease the activities of the accessory digestive organs 
B)  increases stomach emptying 
C)  increase the force of stomach contractions 
D)  increase the release of digestive enzymes and bile 
A)  decrease the activities of the accessory digestive organs 
B)  increases stomach emptying 
C)  increase the force of stomach contractions 
D)  increase the release of digestive enzymes and bile

Question 11

Figure 23.3
Using Figure 23.3, match the following:
-Contains the brush border enzymes that complete digestion of carbohydrates and proteins.

Accepted Answer

A) C 
B) D 
C) B 
D) A 
E) E 
A) C 
B) D 
C) B 
D) A 
E) E

Question 12

The intrinsic ability of visceral smooth muscle to exhibit the stress-relaxation response is termed plasticity.

Accepted Answer

A) True 
 B)False

Question 13

The major role of absorption in the ileum is to reclaim bile salts to be recycled back to the liver.

Accepted Answer

A) True 
 B)False

Question 14

Figure 23.2
Using Figure 23.2, match the following:
-Structures that increase the absorptive area of the small intestine.

Accepted Answer

A) E 
B) C 
C) B 
D) D 
E) A 
A) E 
B) C 
C) B 
D) D 
E) A

Question 15

Which of the organs listed below is involved in all of the following processes: secretion,mechanical breakdown of food,digestion and absorption?

Accepted Answer

A)  the stomach 
B)  the esophagus 
C)  the sigmoid colon 
D)  the large intestines 
A)  the stomach 
B)  the esophagus 
C)  the sigmoid colon 
D)  the large intestines

Question 16

The major means of propulsion through the alimentary canal is peristalsis.

Accepted Answer

A) True 
 B)False

Question 17

The ________ contains lobules with sinusoids (lined with macrophages)that lead to a central venous structure.

Accepted Answer

A)  stomach 
B)  spleen 
C)  liver 
D)  pancreas 
A)  stomach 
B)  spleen 
C)  liver 
D)  pancreas

Question 18

All the chemical and mechanical phases of digestion from the mouth through the small intestine are directed toward changing food into forms that can pass through the epithelial cells lining the mucosa into the underlying blood and lymphatic vessels.

Accepted Answer

A) True 
 B)False

Question 19

Select the one response below that would not result from a drug that blocks histamine receptors in the cells lining the stomach.

Accepted Answer

A)  It would reduce the symptoms of heartburn. 
B)  It would cause the release of secretin and cholecystokinin. 
C)  It would lower the activity of parietal cells. 
D)  It would raise the pH of the stomach. 
A)  It would reduce the symptoms of heartburn. 
B)  It would cause the release of secretin and cholecystokinin. 
C)  It would lower the activity of parietal cells. 
D)  It would raise the pH of the stomach.

Question 20

Which of the following is an essential role played by large intestine bacteria?

Accepted Answer

A)  absorb bilirubin 
B)  synthesize vitamins C and D 
C)  fermentation of indigestible carbohydrates 
D)  produce gas 
A)  absorb bilirubin 
B)  synthesize vitamins C and D 
C)  fermentation of indigestible carbohydrates 
D)  produce gas

Exam 23: The Digestive System

Figure 23.2 Using Figure 23.2, match the following: -Absorptive cells that line the intestinal tract.

Why is it necessary for the stomach contents to be so acidic? How does the stomach protect itself from digestion?

The peritoneum is the most extensive serous membrane in the body.

The function of the hepatic portal circulation is to ________.

Match the following: -Increases HCl secretion and stimulates contraction of intestinal muscle.

The dental formula for an adult is 2-1-2-3.What does the 1 stand for?

Figure 23.1 Using Figure 23.1, match the following: -Mucosa.

The ducts that deliver bile and pancreatic juice from the liver and pancreas,respectively,unite to form the ________.

All but one of the following is a function of the low pH found in the stomach.Select the description below that does not reflect a role of stomach acid.

Generally the hormones secretin and cholecystokinin which are released by duodenal enteroendocrine cells will ________.

Figure 23.3 Using Figure 23.3, match the following: -Contains the brush border enzymes that complete digestion of carbohydrates and proteins.

The intrinsic ability of visceral smooth muscle to exhibit the stress-relaxation response is termed plasticity.

The major role of absorption in the ileum is to reclaim bile salts to be recycled back to the liver.

Figure 23.2 Using Figure 23.2, match the following: -Structures that increase the absorptive area of the small intestine.

Which of the organs listed below is involved in all of the following processes: secretion,mechanical breakdown of food,digestion and absorption?

The major means of propulsion through the alimentary canal is peristalsis.

The ________ contains lobules with sinusoids (lined with macrophages)that lead to a central venous structure.

All the chemical and mechanical phases of digestion from the mouth through the small intestine are directed toward changing food into forms that can pass through the epithelial cells lining the mucosa into the underlying blood and lymphatic vessels.

Select the one response below that would not result from a drug that blocks histamine receptors in the cells lining the stomach.

Which of the following is an essential role played by large intestine bacteria?

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissue

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

The Immune System: Innate and Adaptive Body Defenses

The Respiratory System

Nutrition,metabolism,and Body Temperature Regulation

The Urinary System

Fluid,electrolyte,and Acid-Base Balance

The Reproductive System

Pregnancy and Human Development

Heredity

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