Question 1

B cells do not display MHC molecules on their surface.

Accepted Answer

A) True 
 B)False

Question 2

Use this figure to answer the corresponding questions.
The structure labeled 5 is a(n) ____________________ molecule, and it presents a specific antigen to the ____________________ located on a(n) ____________________ cell.

Accepted Answer

MHC-I, T-c

Question 3

Chemotaxis refers to the ability of leukocytes to squeeze through small capillary pores.

Accepted Answer

A) True 
 B)False

Question 4

The clonal selection theory explains why the capacity for diverse lymphocyte production is limited.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is not a component of innate immunity?

Accepted Answer

A)  inflammation 
B)  antibody production 
C)  interferon 
D)  natural killer cells 
E)  the complement system 
A)  inflammation 
B)  antibody production 
C)  interferon 
D)  natural killer cells 
E)  the complement system

Question 6

____ T cells release perforin.

Accepted Answer

A)  Cytotoxic 
B)  Helper 
C)  Suppressor 
D)  Regulatory 
E)  Inhibitory 
A)  Cytotoxic 
B)  Helper 
C)  Suppressor 
D)  Regulatory 
E)  Inhibitory

Question 7

The molecules that can cause the body to produce antibodies are called

Accepted Answer

A)  complements 
B)  antibodies 
C)  antigens 
D)  haptens 
E)  interferons 
A)  complements 
B)  antibodies 
C)  antigens 
D)  haptens 
E)  interferons

Question 8

The first human vaccination developed by Jenner

Accepted Answer

A)  was for smallpox 
B)  was for anthrax 
C)  used inoculum from sheep 
D)  was for smallpox and used inoculum from sheep 
E)  was for anthrax and used inoculum from sheep 
A)  was for smallpox 
B)  was for anthrax 
C)  used inoculum from sheep 
D)  was for smallpox and used inoculum from sheep 
E)  was for anthrax and used inoculum from sheep

Question 9

Which is not an outcome of complement activation?

Accepted Answer

A)  promotion of localized vasodilation 
B)  formation of a membrane-attack complex 
C)  activation of kinins 
D)  stimulation of interferon production 
E)  stimulation of local mast cell activity 
A)  promotion of localized vasodilation 
B)  formation of a membrane-attack complex 
C)  activation of kinins 
D)  stimulation of interferon production 
E)  stimulation of local mast cell activity

Question 10

The secondary immune response can be longer and more powerful than the primary immune response.

Accepted Answer

A) True 
 B)False

Question 11

The thymus

Accepted Answer

A)  is the site of maturational processing for T lymphocytes 
B)  secretes a collection of hormones important in maintaining the T-cell lineage 
C)  gradually atrophies and becomes less important as an individual matures 
D)  is a lymphoid organ 
E)  all of these 
A)  is the site of maturational processing for T lymphocytes 
B)  secretes a collection of hormones important in maintaining the T-cell lineage 
C)  gradually atrophies and becomes less important as an individual matures 
D)  is a lymphoid organ 
E)  all of these

Question 12

Which of the following is not part of the inflammatory response?

Accepted Answer

A)  localized vasodilation 
B)  migration of neutrophils and macrophages to the site of injury 
C)  kinin activation 
D)  interferon inhibition of viral replication 
E)  formation of interstitial-fluid clots that wall off bacterial invaders 
A)  localized vasodilation 
B)  migration of neutrophils and macrophages to the site of injury 
C)  kinin activation 
D)  interferon inhibition of viral replication 
E)  formation of interstitial-fluid clots that wall off bacterial invaders

Question 13

Complete each of the following statments.
A(n) ____________________ is a disease-producing organism.

Accepted Answer

The answer of Complete each of the following statments.
A(n) ____________________...

Question 14

Which of the following does not help defend against cancer?

Accepted Answer

A)  interferon 
B)  macrophages 
C)  natural killer cells 
D)  cytotoxic T cells 
E)  antibodies 
A)  interferon 
B)  macrophages 
C)  natural killer cells 
D)  cytotoxic T cells 
E)  antibodies

Question 15

Adipose tissue is located within the hypodermis.

Accepted Answer

A) True 
 B)False

Question 16

A sneeze expels irritant material mainly from the esophagus.

Accepted Answer

A) True 
 B)False

Question 17

By apoptosis, virus-infected cells can self-destruct.

Accepted Answer

A) True 
 B)False

Question 18

Interferon, natural killer cells, and cytotoxic T cells all exert antiviral and anticancer effects.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following are lymphoid tissues?

Accepted Answer

A)  lymph nodes 
B)  spleen 
C)  bone marrow 
D)  both lymph nodes and spleen 
E)  all of these 
A)  lymph nodes 
B)  spleen 
C)  bone marrow 
D)  both lymph nodes and spleen 
E)  all of these

Question 20

Which of the following statements concerning an endogenous pyrogen is incorrect?

Accepted Answer

A)  It is an acute-phase protein produced by the liver. 
B)  It is secreted by phagocytes at a site of inflammation. 
C)  It induces the development of fever. 
D)  It is the same as or closely related to leukocyte endogenous mediator and interleukin 1. 
E)  It is believed to cause the local release of prostaglandins within the hypothalamus. 
A)  It is an acute-phase protein produced by the liver. 
B)  It is secreted by phagocytes at a site of inflammation. 
C)  It induces the development of fever. 
D)  It is the same as or closely related to leukocyte endogenous mediator and interleukin 1. 
E)  It is believed to cause the local release of prostaglandins within the hypothalamus.

Exam 12: Body Defenses

B cells do not display MHC molecules on their surface.

Use this figure to answer the corresponding questions. The structure labeled 5 is a(n) ____________________ molecule, and it presents a specific antigen to the ____________________ located on a(n) ____________________ cell.

Chemotaxis refers to the ability of leukocytes to squeeze through small capillary pores.

The clonal selection theory explains why the capacity for diverse lymphocyte production is limited.

Which of the following is not a component of innate immunity?

____ T cells release perforin.

The molecules that can cause the body to produce antibodies are called

The first human vaccination developed by Jenner

Which is not an outcome of complement activation?

The secondary immune response can be longer and more powerful than the primary immune response.

The thymus

Which of the following is not part of the inflammatory response?

Complete each of the following statments. A(n) ____________________ is a disease-producing organism.

Which of the following does not help defend against cancer?

Adipose tissue is located within the hypodermis.

A sneeze expels irritant material mainly from the esophagus.

By apoptosis, virus-infected cells can self-destruct.

Interferon, natural killer cells, and cytotoxic T cells all exert antiviral and anticancer effects.

Which of the following are lymphoid tissues?

Which of the following statements concerning an endogenous pyrogen is incorrect?

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

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

A--The Digestive System

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

Filters

Use this figure to answer the corresponding questions. The structure labeled 5 is a(n) molecule, and it presents a specific antigen to the located on a(n) cell.