Question 1

What local reflexes control the GI tract?

Accepted Answer

The GI tract has extensive sensory and m

Question 2

In the center of a liver lobule there is a

Accepted Answer

A) hepatic duct. 
B) portal area. 
C) sinusoid. 
D) central vein. 
E) portal vein. 
A) hepatic duct. 
B) portal area. 
C) sinusoid. 
D) central vein. 
E) portal vein.

Question 3

The stomach secretes the hormone ghrelin which functions to

Accepted Answer

A) inhibit hunger. 
B) initiate secretion of gastric juice containing enzymes and acid. 
C) regulate the digestion of lipids. 
D) stimulate hunger. 
E) stimulate secretion of mucus from submucosal glands. 
A) inhibit hunger. 
B) initiate secretion of gastric juice containing enzymes and acid. 
C) regulate the digestion of lipids. 
D) stimulate hunger. 
E) stimulate secretion of mucus from submucosal glands.

Question 4

________ are also known as canines.

Accepted Answer

A) Bicuspids 
B) Incisors 
C) Molars 
D) Secondary teeth 
E) Cuspids 
A) Bicuspids 
B) Incisors 
C) Molars 
D) Secondary teeth 
E) Cuspids

Question 5

A drug that blocks the action of carbonic anhydrase in parietal cells would result in

Accepted Answer

A) a lower pH during gastric digestion. 
B) a higher pH during gastric digestion. 
C) decreased production of pepsinogen by chief cells. 
D) increased protein digestion in the stomach. 
E) decreased gastrin production. 
A) a lower pH during gastric digestion. 
B) a higher pH during gastric digestion. 
C) decreased production of pepsinogen by chief cells. 
D) increased protein digestion in the stomach. 
E) decreased gastrin production.

Question 6

Circular folds are

Accepted Answer

A) ridges in the wall of the stomach. 
B) pleats in the lining of the small intestine. 
C) fingerlike projections on the surface of the mucosa of the small intestine. 
D) sacculations in the colon. 
E) abnormal structures formed by excessive pressure in the small intestine. 
A) ridges in the wall of the stomach. 
B) pleats in the lining of the small intestine. 
C) fingerlike projections on the surface of the mucosa of the small intestine. 
D) sacculations in the colon. 
E) abnormal structures formed by excessive pressure in the small intestine.

Question 7

Figure 24-1 The Stomach (dissected)
Use Figure 24-1 to answer the following questions:
-Identify the structure labeled "10."

Accepted Answer

A) longitudinal muscle layer 
B) circular muscle layer 
C) oblique muscle layer 
D) rugae 
E) submucosa 
A) longitudinal muscle layer 
B) circular muscle layer 
C) oblique muscle layer 
D) rugae 
E) submucosa

Question 8

The prominent ridges in the lining of the empty stomach are called

Accepted Answer

A) cardia. 
B) papillae. 
C) rugae. 
D) plicae. 
E) villi. 
A) cardia. 
B) papillae. 
C) rugae. 
D) plicae. 
E) villi.

Question 9

Muscles known as the pharyngeal constrictors function in

Accepted Answer

A) mastication. 
B) moving the tongue. 
C) swallowing. 
D) esophageal peristalsis. 
E) opening the cardiac sphincter. 
A) mastication. 
B) moving the tongue. 
C) swallowing. 
D) esophageal peristalsis. 
E) opening the cardiac sphincter.

Question 10

The technical term for chewing is

Accepted Answer

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

Question 11

The layer of loose connective tissue that directly supports the digestive epithelium is the

Accepted Answer

A) lamina propria. 
B) muscularis mucosae. 
C) submucosa. 
D) submucosal plexus. 
E) myenteric plexus. 
A) lamina propria. 
B) muscularis mucosae. 
C) submucosa. 
D) submucosal plexus. 
E) myenteric plexus.

Question 12

Which of the following is an accessory organ of digestion?

Accepted Answer

A) appendix 
B) pancreas 
C) spleen 
D) colon 
E) esophagus 
A) appendix 
B) pancreas 
C) spleen 
D) colon 
E) esophagus

Question 13

The duodenal ampulla receives secretions from the

Accepted Answer

A) duodenum and the jejunum. 
B) duodenum and the pylorus. 
C) common bile duct and the pancreatic duct. 
D) duodenum and the pancreatic duct. 
E) duodenum and the common bile duct. 
A) duodenum and the jejunum. 
B) duodenum and the pylorus. 
C) common bile duct and the pancreatic duct. 
D) duodenum and the pancreatic duct. 
E) duodenum and the common bile duct.

Question 14

Approximately ________ liters of fluid are secreted by the small intestine each day.

Accepted Answer

A) 20 
B) 10 
C) 2 
D) 1 
E) 7 
A) 20 
B) 10 
C) 2 
D) 1 
E) 7

Question 15

The defecation reflex involves

Accepted Answer

A) sympathetic nerves. 
B) relaxation of both the internal and external anal sphincters. 
C) conscious control of both the internal and external anal sphincters. 
D) relaxation of the ileocecal valve to move feces into the rectum. 
E) parasympathetic nerve control from sacral nerves. 
A) sympathetic nerves. 
B) relaxation of both the internal and external anal sphincters. 
C) conscious control of both the internal and external anal sphincters. 
D) relaxation of the ileocecal valve to move feces into the rectum. 
E) parasympathetic nerve control from sacral nerves.

Question 16

Digestion refers to the

Accepted Answer

A) progressive dehydration of indigestible residue. 
B) mechanical breakdown of food. 
C) chemical breakdown of food. 
D) mechanical and chemical breakdown of food. 
E) All of the answers are correct. 
A) progressive dehydration of indigestible residue. 
B) mechanical breakdown of food. 
C) chemical breakdown of food. 
D) mechanical and chemical breakdown of food. 
E) All of the answers are correct.

Question 17

The taenia coli are

Accepted Answer

A) tears of the colon. 
B) longitudinal bands of smooth muscle in the colon wall. 
C) ridges in the mucosa of the colon. 
D) polyps that obstruct the sigmoid colon. 
E) tumors normally confined in the sigmoid colon. 
A) tears of the colon. 
B) longitudinal bands of smooth muscle in the colon wall. 
C) ridges in the mucosa of the colon. 
D) polyps that obstruct the sigmoid colon. 
E) tumors normally confined in the sigmoid colon.

Question 18

After food and gastric juices combine,the gastric contents are referred to as

Accepted Answer

A) bolus. 
B) chunk. 
C) chyme. 
D) feces. 
E) segments. 
A) bolus. 
B) chunk. 
C) chyme. 
D) feces. 
E) segments.

Question 19

Carbohydrate digestion begins in the

Accepted Answer

A) mouth. 
B) esophagus. 
C) stomach. 
D) duodenum. 
E) ileum. 
A) mouth. 
B) esophagus. 
C) stomach. 
D) duodenum. 
E) ileum.

Question 20

In most cases,the mumps is a viral infection of the ________ glands.

Accepted Answer

A) mandibular 
B) sublingual 
C) parotid 
D) submandibular 
E) lingual 
A) mandibular 
B) sublingual 
C) parotid 
D) submandibular 
E) lingual

Exam 24: The Digestive System

What local reflexes control the GI tract?

In the center of a liver lobule there is a

The stomach secretes the hormone ghrelin which functions to

________ are also known as canines.

A drug that blocks the action of carbonic anhydrase in parietal cells would result in

Circular folds are

Figure 24-1 The Stomach (dissected) Use Figure 24-1 to answer the following questions: -Identify the structure labeled "10."

The prominent ridges in the lining of the empty stomach are called

Muscles known as the pharyngeal constrictors function in

The technical term for chewing is

The layer of loose connective tissue that directly supports the digestive epithelium is the

Which of the following is an accessory organ of digestion?

The duodenal ampulla receives secretions from the

Approximately ________ liters of fluid are secreted by the small intestine each day.

The defecation reflex involves

Digestion refers to the

The taenia coli are

After food and gastric juices combine,the gastric contents are referred to as

Carbohydrate digestion begins in the

In most cases,the mumps is a viral infection of the ________ glands.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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