Question 1

The circumferential folds that encircle the digestive tract are known as

Accepted Answer

A) muscularis externa. 
B) circular folds. 
C) rugae. 
D) serosa. 
E) adventitia. 
A) muscularis externa. 
B) circular folds. 
C) rugae. 
D) serosa. 
E) adventitia.

Question 2

The middle segment of the small intestine is called the

Accepted Answer

A) duodenum. 
B) ileum. 
C) hilum. 
D) jejunum. 
E) cecum. 
A) duodenum. 
B) ileum. 
C) hilum. 
D) jejunum. 
E) cecum.

Question 3

The part of the small intestine most likely to develop an ulcer from exposure to gastric juice is the

Accepted Answer

A) pylorus. 
B) duodenum. 
C) ileum. 
D) caecum. 
E) jejunum. 
A) pylorus. 
B) duodenum. 
C) ileum. 
D) caecum. 
E) jejunum.

Question 4

________ are pointed teeth that are adapted for tearing and slashing.

Accepted Answer

A) Incisors 
B) Bicuspids 
C) Premolars 
D) Cuspids 
E) Molars 
A) Incisors 
B) Bicuspids 
C) Premolars 
D) Cuspids 
E) Molars

Question 5

Which of the following descriptions best matches the term myenteric plexus?

Accepted Answer

A) component of mucosa 
B) sensory neural network 
C) secretes a watery fluid 
D) coordinates activity of muscularis externa 
E) loose connective tissue layer containing blood vessels 
A) component of mucosa 
B) sensory neural network 
C) secretes a watery fluid 
D) coordinates activity of muscularis externa 
E) loose connective tissue layer containing blood vessels

Question 6

Figure 24-2 The Wall of the Small Intestine
Use Figure 24-2 to answer the following questions:
-What is the layer labeled "2"?

Accepted Answer

A) muscularis externa 
B) circular muscle 
C) lamina propria 
D) longitudinal muscle 
E) muscularis mucosae 
A) muscularis externa 
B) circular muscle 
C) lamina propria 
D) longitudinal muscle 
E) muscularis mucosae

Question 7

The gastric phase of gastric secretion is triggered by the

Accepted Answer

A) sight,thought,or smell of food. 
B) entry of food into the stomach. 
C) entry of chyme into the small intestine. 
D) entry of chyme into the large intestine. 
E) release of cholecystokinin and secretin by the small intestine. 
A) sight,thought,or smell of food. 
B) entry of food into the stomach. 
C) entry of chyme into the small intestine. 
D) entry of chyme into the large intestine. 
E) release of cholecystokinin and secretin by the small intestine.

Question 8

Figure 24-1 The Stomach (dissected)
Use Figure 24-1 to answer the following questions:
-Identify the stomach region labeled "7."

Accepted Answer

A) esophagus 
B) cardia 
C) lesser curvature 
D) greater curvature 
E) pylorus 
A) esophagus 
B) cardia 
C) lesser curvature 
D) greater curvature 
E) pylorus

Question 9

Which of the following contains adipose tissue and provides padding for the anterior and lateral portions of the abdomen?

Accepted Answer

A) falciform ligament 
B) greater omentum 
C) mesentery proper 
D) lesser omentum 
E) diaphragm 
A) falciform ligament 
B) greater omentum 
C) mesentery proper 
D) lesser omentum 
E) diaphragm

Question 10

The uvula is located at the

Accepted Answer

A) posterior of the tongue. 
B) margin of the vestibule. 
C) base of a tooth. 
D) posterior margin of the soft palate. 
E) margin of the oropharynx and the laryngopharynx. 
A) posterior of the tongue. 
B) margin of the vestibule. 
C) base of a tooth. 
D) posterior margin of the soft palate. 
E) margin of the oropharynx and the laryngopharynx.

Question 11

The roof of the oral cavity is formed by the

Accepted Answer

A) palatine processes of the maxillary bones. 
B) hard palate. 
C) soft palate. 
D) palatine bones. 
E) All of the answers are correct. 
A) palatine processes of the maxillary bones. 
B) hard palate. 
C) soft palate. 
D) palatine bones. 
E) All of the answers are correct.

Question 12

Pancreatic juice enters the small intestine at the

Accepted Answer

A) hepatic duct. 
B) ileocecal valve. 
C) duodenal papilla. 
D) pyloric sphincter. 
E) cystic duct. 
A) hepatic duct. 
B) ileocecal valve. 
C) duodenal papilla. 
D) pyloric sphincter. 
E) cystic duct.

Question 13

In response to the hormone secretin,the pancreas secretes a fluid

Accepted Answer

A) rich in enzymes. 
B) rich in bicarbonate ion. 
C) rich in bile. 
D) rich in mucus. 
E) that contains only amylase. 
A) rich in enzymes. 
B) rich in bicarbonate ion. 
C) rich in bile. 
D) rich in mucus. 
E) that contains only amylase.

Question 14

An enzyme secreted by the gastric mucosa of a newborn that coagulates milk proteins is

Accepted Answer

A) pepsin. 
B) trypsin. 
C) gastrin. 
D) rennin. 
E) cholecystokinin. 
A) pepsin. 
B) trypsin. 
C) gastrin. 
D) rennin. 
E) cholecystokinin.

Question 15

At the splenic flexure,the colon becomes the

Accepted Answer

A) ascending colon. 
B) transverse colon. 
C) descending colon. 
D) sigmoid colon. 
E) rectum. 
A) ascending colon. 
B) transverse colon. 
C) descending colon. 
D) sigmoid colon. 
E) rectum.

Question 16

The small,semisolid mass of food formed during mastication is called a

Accepted Answer

A) chunk. 
B) chime. 
C) morsel. 
D) bolus. 
E) pill. 
A) chunk. 
B) chime. 
C) morsel. 
D) bolus. 
E) pill.

Question 17

What provides access for blood vessels entering and leaving the liver?

Accepted Answer

A) falciform ligament 
B) greater omentum 
C) mesentery proper 
D) lesser omentum 
E) diaphragm 
A) falciform ligament 
B) greater omentum 
C) mesentery proper 
D) lesser omentum 
E) diaphragm

Question 18

The esophagus has several variations from the standard plan of the GI tract.These include

Accepted Answer

A) epithelium of mucosa is stratified squamous. 
B) epithelium of mucosa is simple columnar. 
C) muscularis externa has some skeletal muscle. 
D) epithelium of mucosa is stratified squamous and simple columnar. 
E) epithelium of mucosa is simple columnar and muscularis externa may be striated muscle. 
A) epithelium of mucosa is stratified squamous. 
B) epithelium of mucosa is simple columnar. 
C) muscularis externa has some skeletal muscle. 
D) epithelium of mucosa is stratified squamous and simple columnar. 
E) epithelium of mucosa is simple columnar and muscularis externa may be striated muscle.

Question 19

The Kupffer cells of the liver

Accepted Answer

A) destroy damaged RBCs. 
B) destroy bacteria. 
C) present antigens. 
D) are phagocytic. 
E) All of the answers are correct. 
A) destroy damaged RBCs. 
B) destroy bacteria. 
C) present antigens. 
D) are phagocytic. 
E) All of the answers are correct.

Question 20

Bile salts aid in the digestion of fats by ________ large fat droplets.

Accepted Answer

A) dehydrating 
B) anabolizing 
C) binding 
D) combining 
E) emulsifying 
A) dehydrating 
B) anabolizing 
C) binding 
D) combining 
E) emulsifying

Exam 24: The Digestive System

The circumferential folds that encircle the digestive tract are known as

The middle segment of the small intestine is called the

The part of the small intestine most likely to develop an ulcer from exposure to gastric juice is the

________ are pointed teeth that are adapted for tearing and slashing.

Which of the following descriptions best matches the term myenteric plexus?

Figure 24-2 The Wall of the Small Intestine Use Figure 24-2 to answer the following questions: -What is the layer labeled "2"?

The gastric phase of gastric secretion is triggered by the

Figure 24-1 The Stomach (dissected) Use Figure 24-1 to answer the following questions: -Identify the stomach region labeled "7."

Which of the following contains adipose tissue and provides padding for the anterior and lateral portions of the abdomen?

The uvula is located at the

The roof of the oral cavity is formed by the

Pancreatic juice enters the small intestine at the

In response to the hormone secretin,the pancreas secretes a fluid

An enzyme secreted by the gastric mucosa of a newborn that coagulates milk proteins is

At the splenic flexure,the colon becomes the

The small,semisolid mass of food formed during mastication is called a

What provides access for blood vessels entering and leaving the liver?

The esophagus has several variations from the standard plan of the GI tract.These include

The Kupffer cells of the liver

Bile salts aid in the digestion of fats by ________ large fat droplets.

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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