Question 1

Smooth muscle fibers have ________ which allow entry of Ca2+ from the extracellular fluid, and ________, which allow impulses to spread between adjacent fibers.

Accepted Answer

A)  cytoskeleton; desmosomes 
B)  tight junctions; varicosities 
C)  caveolae; gap junctions 
D)  varicosities; caveolae 
A)  cytoskeleton; desmosomes 
B)  tight junctions; varicosities 
C)  caveolae; gap junctions 
D)  varicosities; caveolae

Question 2

Identify the location and function of the enteric nerve plexus.

Accepted Answer

The enteric nerve plexus consists of neu

Question 3

The small intestines contain bacteria that synthesize some essential vitamins.

Accepted Answer

A) True 
 B)False

Question 4

In the liver, hepatic portal blood mixes with blood from the hepatic artery.

Accepted Answer

A) True 
 B)False

Question 5

Use the diagram above to answer the following questions.
-Identify the letter that indicates the crown.

Accepted Answer

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

Question 6

The largest salivary gland is the

Accepted Answer

A)  intrinsic. 
B)  submandibular. 
C)  sublingual. 
D)  parotid. 
A)  intrinsic. 
B)  submandibular. 
C)  sublingual. 
D)  parotid.

Question 7

Which of the following is not a function of hepatocytes?

Accepted Answer

A)  producing digestive enzymes 
B)  picking up and processing nutrients from the portal blood 
C)  storing some vitamins 
D)  detoxifying poisons 
A)  producing digestive enzymes 
B)  picking up and processing nutrients from the portal blood 
C)  storing some vitamins 
D)  detoxifying poisons

Question 8

Another name for the serosa covering many organs of the digestive system is

Accepted Answer

A)  parietal peritoneum. 
B)  serous gland. 
C)  visceral peritoneum. 
D)  mucosa. 
A)  parietal peritoneum. 
B)  serous gland. 
C)  visceral peritoneum. 
D)  mucosa.

Question 9

Retroperitoneal organs have a serosa facing the peritoneal cavity and a(n) ________ on the posterior side embedded in the abdominal wall.

Accepted Answer

A)  mesothelium 
B)  adventitia 
C)  muscularis externa 
D)  vasa vasorum 
E)  caveolae 
A)  mesothelium 
B)  adventitia 
C)  muscularis externa 
D)  vasa vasorum 
E)  caveolae

Question 10

In mastication, the relative roles of an incisor versus a molar are

Accepted Answer

A)  piercing versus tearing. 
B)  chewing versus holding food in the mouth. 
C)  biting off pieces of food versus grinding. 
D)  only incisors function in mastication. 
A)  piercing versus tearing. 
B)  chewing versus holding food in the mouth. 
C)  biting off pieces of food versus grinding. 
D)  only incisors function in mastication.

Question 11

Villi are cytoplasmic projections on the surface of intestinal absorptive cells.

Accepted Answer

A) True 
 B)False

Question 12

The correct sequence of layers in the wall of the alimentary canal, from internal to external, is

Accepted Answer

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

Question 13

The sinusoids of a liver lobule receive blood from the portal arteriole and deliver blood to the portal venule.

Accepted Answer

A) True 
 B)False

Question 14

Explain the relationships and distinguish among the following structures of the small intestine: villi, microvilli, and circular folds.

Accepted Answer

Plicae circulares or circular folds are

Question 15

Use the diagram above to answer the following questions.
-Identify the letter that indicates the curvature where the greater omentum attaches.

Accepted Answer

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

Question 16

Use the diagram above to answer the following questions.
-Identify the letter that indicates the region of the stomach which regulates the passage of chyme into the small intestine.

Accepted Answer

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

Question 17

Which of the following correctly describes a function of the greater omentum?

Accepted Answer

A)  It is a vestigial structure that has no known function. 
B)  It stores fat. 
C)  It absorbs heat from the digestive process and radiates it to the outside of the body. 
D)  It wraps around most of the large intestine and anchors it to the anterior abdominal wall. 
A)  It is a vestigial structure that has no known function. 
B)  It stores fat. 
C)  It absorbs heat from the digestive process and radiates it to the outside of the body. 
D)  It wraps around most of the large intestine and anchors it to the anterior abdominal wall.

Question 18

What is the function of the gallbladder?

Accepted Answer

A)  secretion of bile 
B)  production of cholesterol 
C)  secretion of gastrin 
D)  storage of bile 
A)  secretion of bile 
B)  production of cholesterol 
C)  secretion of gastrin 
D)  storage of bile

Question 19

Use the diagram above to answer the following questions.
-Identify the letter that indicates the neck of the tooth.

Accepted Answer

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

Question 20

Some mesenteries are named "ligaments" (i.e., the falciform ligament) because they are comprised of dense regular connective tissue.

Accepted Answer

A) True 
 B)False

Exam 23: The Digestive System

Smooth muscle fibers have ________ which allow entry of Ca2+ from the extracellular fluid, and ________, which allow impulses to spread between adjacent fibers.

Identify the location and function of the enteric nerve plexus.

The small intestines contain bacteria that synthesize some essential vitamins.

In the liver, hepatic portal blood mixes with blood from the hepatic artery.

Use the diagram above to answer the following questions. -Identify the letter that indicates the crown.

The largest salivary gland is the

Which of the following is not a function of hepatocytes?

Another name for the serosa covering many organs of the digestive system is

Retroperitoneal organs have a serosa facing the peritoneal cavity and a(n) ________ on the posterior side embedded in the abdominal wall.

In mastication, the relative roles of an incisor versus a molar are

Villi are cytoplasmic projections on the surface of intestinal absorptive cells.

The correct sequence of layers in the wall of the alimentary canal, from internal to external, is

The sinusoids of a liver lobule receive blood from the portal arteriole and deliver blood to the portal venule.

Explain the relationships and distinguish among the following structures of the small intestine: villi, microvilli, and circular folds.

Use the diagram above to answer the following questions. -Identify the letter that indicates the curvature where the greater omentum attaches.

Use the diagram above to answer the following questions. -Identify the letter that indicates the region of the stomach which regulates the passage of chyme into the small intestine.

Which of the following correctly describes a function of the greater omentum?

What is the function of the gallbladder?

Use the diagram above to answer the following questions. -Identify the letter that indicates the neck of the tooth.

Some mesenteries are named "ligaments" (i.e., the falciform ligament) because they are comprised of dense regular connective tissue.

The Human Body: an Orientation

Cells: the Living Units

Basic Embryology

Tissues

The Integumentary System

Bones and Skeletal Tissues

Bones, Part 1: the Axial Skeleton

Bones, Part 2: the Appendicular Skeleton

Joints

Skeletal Muscle Tissue

Muscles of the Body

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System

The Autonomic Nervous System and Visceral Sensory Neurons

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels

The Lymphatic and Immune Systems

The Respiratory System

The Urinary System

The Reproductive System

Filters

Smooth muscle fibers have which allow entry of Ca²⁺ from the extracellular fluid, and , which allow impulses to spread between adjacent fibers.