Question 1

Innate defenses include

Accepted Answer

A) phagocytic cells. 
B) physical barriers. 
C) inflammation. 
D) interferons. 
E) All of the answers are correct. 
A) phagocytic cells. 
B) physical barriers. 
C) inflammation. 
D) interferons. 
E) All of the answers are correct. E

Question 2

All of the following are true of the thymus gland,except that it

Accepted Answer

A) activates B cells. 
B) reaches its greatest relative size during the second year of life. 
C) involutes after puberty. 
D) produces T cells. 
E) lies in the anterior mediastinum. 
A) activates B cells. 
B) reaches its greatest relative size during the second year of life. 
C) involutes after puberty. 
D) produces T cells. 
E) lies in the anterior mediastinum. A

Question 3

________ occurs when an antigen fragment-glycoprotein complex appears in a plasma membrane.(Note: Be sure to capitalize the first letter of your answer).

Accepted Answer

Antigen presentation

Question 4

An accumulation of lymph in a region where lymphatic drainage has been blocked is termed ________.

Accepted Answer

The answer of An accumulation of lymph in a region...

Question 5

If the disulfide bonds in IgG were broken,how many protein chains would be set free?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 8 
E) dozens 
A) 2 
B) 4 
C) 6 
D) 8 
E) dozens

Question 6

An inflammatory response is triggered when

Accepted Answer

A) red blood cells release pyrogens. 
B) T cells release interferon. 
C) mast cells release histamine and heparin. 
D) neutrophils phagocytize bacteria. 
E) blood flow to an area increases. 
A) red blood cells release pyrogens. 
B) T cells release interferon. 
C) mast cells release histamine and heparin. 
D) neutrophils phagocytize bacteria. 
E) blood flow to an area increases.

Question 7

The following are steps in the cell-mediated immune response. 1.Several cycles of mitosis occur.
2)Antigen is engulfed and presented by a macrophage.
3)Cytotoxic T cells migrate to focus of infection.
4)T cells with specific receptors recognize the antigen.
5)T cells differentiate into cytotoxic T cells or T memory cells.
6)Cytotoxic T cells release perforin and/or lymphotoxin.
The correct sequence for these steps is

Accepted Answer

A) 4,1,5,3,6,2. 
B) 2,4,1,5,3,6. 
C) 1,2,4,5,3,6. 
D) 3,2,4,1,5,6. 
E) 3,6,4,5,1,2. 
A) 4,1,5,3,6,2. 
B) 2,4,1,5,3,6. 
C) 1,2,4,5,3,6. 
D) 3,2,4,1,5,6. 
E) 3,6,4,5,1,2.

Question 8

In a routine examination,some blood is taken and analyzed.The results show a high IgM titer for the mumps virus but a low IgG anti-mumps titer.This would indicate the person

Accepted Answer

A) has just recovered from mumps. 
B) was recently infected with mumps. 
C) is allergic to mumps. 
D) is immune to mumps. 
E) is relying on passive immunity. 
A) has just recovered from mumps. 
B) was recently infected with mumps. 
C) is allergic to mumps. 
D) is immune to mumps. 
E) is relying on passive immunity.

Question 9

________ cells enable the immune system to respond quickly and robustly if the same antigen is encountered a second time. (Note: Be sure to capitalize the first letter of your answer).

Accepted Answer

The answer of ________ cells enable the immune system to...

Question 10

Microphages include

Accepted Answer

A) monocytes. 
B) Kupffer cells. 
C) neutrophils. 
D) eosinophils. 
E) both neutrophils and eosinophils. 
A) monocytes. 
B) Kupffer cells. 
C) neutrophils. 
D) eosinophils. 
E) both neutrophils and eosinophils.

Question 11

The role of antigen-presenting cells in immunity is to

Accepted Answer

A) activate T cells. 
B) display antigen fragments. 
C) process antigens. 
D) bind antigens to glycoproteins. 
E) All of the answers are correct. 
A) activate T cells. 
B) display antigen fragments. 
C) process antigens. 
D) bind antigens to glycoproteins. 
E) All of the answers are correct.

Question 12

The primary function of the lymphatic system is

Accepted Answer

A) circulation of nutrients. 
B) the transport of hormones. 
C) defending the body against both environmental hazards and internal threats. 
D) the production and distribution of plasma proteins. 
E) circulation of dissolved gases. 
A) circulation of nutrients. 
B) the transport of hormones. 
C) defending the body against both environmental hazards and internal threats. 
D) the production and distribution of plasma proteins. 
E) circulation of dissolved gases.

Question 13

The release of endogenous pyrogen (or interleukin-1)by active macrophages would

Accepted Answer

A) cause inflammation. 
B) produce a fever. 
C) activate complement. 
D) opsonize pathogens. 
E) activate antibodies. 
A) cause inflammation. 
B) produce a fever. 
C) activate complement. 
D) opsonize pathogens. 
E) activate antibodies.

Question 14

In order for a lymphocyte to respond to an antigen,the antigen must

Accepted Answer

A) be phagocytized by the lymphocyte. 
B) enter the cytoplasm of the lymphocyte. 
C) bind to the DNA of the lymphocyte. 
D) bind to specific receptors on the lymphocyte surface. 
E) depolarize the lymphocyte. 
A) be phagocytized by the lymphocyte. 
B) enter the cytoplasm of the lymphocyte. 
C) bind to the DNA of the lymphocyte. 
D) bind to specific receptors on the lymphocyte surface. 
E) depolarize the lymphocyte.

Question 15

The binding of an antibody to an antigen can result in

Accepted Answer

A) neutralization of the antigen. 
B) agglutination or precipitation. 
C) complement activation and opsonization. 
D) inflammation. 
E) All of the answers are correct. 
A) neutralization of the antigen. 
B) agglutination or precipitation. 
C) complement activation and opsonization. 
D) inflammation. 
E) All of the answers are correct.

Question 16

The thoracic duct drains lymph from all of the following regions,except the

Accepted Answer

A) left breast. 
B) right breast. 
C) left arm and shoulder. 
D) pelvic viscera. 
E) left side of neck. 
A) left breast. 
B) right breast. 
C) left arm and shoulder. 
D) pelvic viscera. 
E) left side of neck.

Question 17

The body's innate defenses include all of the following,except

Accepted Answer

A) the skin. 
B) complement. 
C) interferon. 
D) inflammation. 
E) antibodies. 
A) the skin. 
B) complement. 
C) interferon. 
D) inflammation. 
E) antibodies.

Question 18

The thoracic duct originates from an expanded chamber called the ________.

Accepted Answer

The answer of The thoracic duct originates from an expanded...

Question 19

The classic pathway of complement activation begins when the protein C1 binds to

Accepted Answer

A) the cell wall of bacteria. 
B) the plasma membrane of bacteria. 
C) an antibody attached to an antigen. 
D) a cell surface antigen. 
E) a plasma protein. 
A) the cell wall of bacteria. 
B) the plasma membrane of bacteria. 
C) an antibody attached to an antigen. 
D) a cell surface antigen. 
E) a plasma protein.

Question 20

________ is the class of antibody first secreted in response to a new antigen.

Accepted Answer

A) IgG 
B) IgE 
C) IgD 
D) IgM 
E) IgA 
A) IgG 
B) IgE 
C) IgD 
D) IgM 
E) IgA

Exam 22: The Lymphatic System and Immunity

Innate defenses include

All of the following are true of the thymus gland,except that it

________ occurs when an antigen fragment-glycoprotein complex appears in a plasma membrane.(Note: Be sure to capitalize the first letter of your answer).

An accumulation of lymph in a region where lymphatic drainage has been blocked is termed ________.

If the disulfide bonds in IgG were broken,how many protein chains would be set free?

An inflammatory response is triggered when

In a routine examination,some blood is taken and analyzed.The results show a high IgM titer for the mumps virus but a low IgG anti-mumps titer.This would indicate the person

________ cells enable the immune system to respond quickly and robustly if the same antigen is encountered a second time. (Note: Be sure to capitalize the first letter of your answer).

Microphages include

The role of antigen-presenting cells in immunity is to

The primary function of the lymphatic system is

The release of endogenous pyrogen (or interleukin-1)by active macrophages would

In order for a lymphocyte to respond to an antigen,the antigen must

The binding of an antibody to an antigen can result in

The thoracic duct drains lymph from all of the following regions,except the

The body's innate defenses include all of the following,except

The thoracic duct originates from an expanded chamber called the ________.

The classic pathway of complement activation begins when the protein C1 binds to

________ is the class of antibody first secreted in response to a new antigen.

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

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration I: Sensory Pathways and the Somatic Nervous System

Neural Integration Ii: the Autonomic Nervous System and

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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