Question 1

Figure 20- 1 The Structure of a Lymph Node
Use Figure 20- 1 to answer the following questions:
-Specific defenses depend on the activities of

Accepted Answer

A)  monocytes. 
B)  erythrocytes. 
C)  agranulocytes. 
D)  leukocytes. 
E)  lymphocytes. 
A)  monocytes. 
B)  erythrocytes. 
C)  agranulocytes. 
D)  leukocytes. 
E)  lymphocytes.

Question 2

________ are fixed macrophages that are found in the central nervous system.

Accepted Answer

The answer of ________ are fixed macrophages that are found...

Question 3

Stem cells that will form T cells develop in the

Accepted Answer

A)  liver. 
B)  bone marrow. 
C)  kidneys. 
D)  thymus. 
E)  spleen. 
A)  liver. 
B)  bone marrow. 
C)  kidneys. 
D)  thymus. 
E)  spleen.

Question 4

Inflammation produces localized

Accepted Answer

A)  heat. 
B)  swelling. 
C)  redness. 
D)  pain. 
E)  all of the above 
A)  heat. 
B)  swelling. 
C)  redness. 
D)  pain. 
E)  all of the above

Question 5

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

Question 6

Most of the lymph returns to the venous circulation by way of the

Accepted Answer

A)  right lymphatic duct. 
B)  thoracic duct. 
C)  dural sinus. 
D)  hepatic portal vein. 
E)  cisterna chyli. 
A)  right lymphatic duct. 
B)  thoracic duct. 
C)  dural sinus. 
D)  hepatic portal vein. 
E)  cisterna chyli.

Question 7

Which of these statements about lymph flow in a node is false?

Accepted Answer

A)  lymph enters in an afferent lymphatic 
B)  lymph flows past dendritic cells 
C)  the afferent lymphatics enters at the hilum 
D)  the efferent lymphatic exits at the hilum 
E)  lymph first enters the subcapsular space 
A)  lymph enters in an afferent lymphatic 
B)  lymph flows past dendritic cells 
C)  the afferent lymphatics enters at the hilum 
D)  the efferent lymphatic exits at the hilum 
E)  lymph first enters the subcapsular space

Question 8

Newborns gain their immunity initially from

Accepted Answer

A)  antibodies passed across the placenta from the mother. 
B)  breast milk. 
C)  early immunizations. 
D)  contact with siblings. 
E)  contact with viruses and bacteria. 
A)  antibodies passed across the placenta from the mother. 
B)  breast milk. 
C)  early immunizations. 
D)  contact with siblings. 
E)  contact with viruses and bacteria.

Question 9

Leslie has a bad sore throat and the lymph glands in her neck are swollen. This would indicate that

Accepted Answer

A)  the lymph gland has increased its secretion of thymosin. 
B)  the focus of the infection is the lymph glands. 
C)  lymph is not flowing through these lymph glands. 
D)  the lymph gland is actively producing phagocytes. 
E)  the affected lymph glands contain an increased number of lymphocytes. 
A)  the lymph gland has increased its secretion of thymosin. 
B)  the focus of the infection is the lymph glands. 
C)  lymph is not flowing through these lymph glands. 
D)  the lymph gland is actively producing phagocytes. 
E)  the affected lymph glands contain an increased number of lymphocytes.

Question 10

Lymphoid organs such as the thymus and spleen are surrounded by a connective tissue capsule

Accepted Answer

A) True 
 B)False

Question 11

Hormones that slow tumor growth are called________

Accepted Answer

tumor necr

Question 12

Immunity that results from antibodies that pass the placenta from mother to fetus is called ______immunity.

Accepted Answer

A)  innate 
B)  auto 
C)  naturally acquired passive 
D)  passive 
E)  active 
A)  innate 
B)  auto 
C)  naturally acquired passive 
D)  passive 
E)  active

Question 13

Autoantibodies

Accepted Answer

A)  are the first step in immunological competence. 
B)  are directed against the body's own antigens. 
C)  are produced by activated T cells. 
D)  are important in tissue rejection reactions. 
E)  are produced during an allergic reaction. 
A)  are the first step in immunological competence. 
B)  are directed against the body's own antigens. 
C)  are produced by activated T cells. 
D)  are important in tissue rejection reactions. 
E)  are produced during an allergic reaction.

Question 14

_________ are phagocytic cells that are permanent residents of specific tissues and organs.

Accepted Answer

The answer of _________ are phagocytic cells that are permanent...

Question 15

Lymphocytes may be found in which of the following tissues or organs?

Accepted Answer

A)  lymph nodes 
B)  tonsils 
C)  spleen 
D)  thymus 
E)  all of the above 
A)  lymph nodes 
B)  tonsils 
C)  spleen 
D)  thymus 
E)  all of the above

Question 16

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

Accepted Answer

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

Question 17

The process by which antibodies bind to the antigen on the surface of cells, forming large immune complexes, is called__________ .

Accepted Answer

The answer of The process by which antibodies bind to...

Question 18

What do the letters HIV stand for?

Accepted Answer

human immu

Question 19

When large numbers of antibodies encounter their antigenic targets, they interact to form a three- dimensional structure known as an)_________ .

Accepted Answer

The answer of When large numbers of antibodies encounter their...

Question 20

Class II MHC molecules are found only on which of the following?

Accepted Answer

A)  liver cells and macrophages in the spleen 
B)  red blood cells 
C)  all body cells with a nucleus 
D)  granulocytes and microphages 
E)  lymphocytes and antigen- presenting cells 
A)  liver cells and macrophages in the spleen 
B)  red blood cells 
C)  all body cells with a nucleus 
D)  granulocytes and microphages 
E)  lymphocytes and antigen- presenting cells

Exam 20: The Lymphoid System and Immunity

Figure 20- 1 The Structure of a Lymph Node Use Figure 20- 1 to answer the following questions: -Specific defenses depend on the activities of

________ are fixed macrophages that are found in the central nervous system.

Stem cells that will form T cells develop in the

Inflammation produces localized

Most of the lymph returns to the venous circulation by way of the

Which of these statements about lymph flow in a node is false?

Newborns gain their immunity initially from

Leslie has a bad sore throat and the lymph glands in her neck are swollen. This would indicate that

Lymphoid organs such as the thymus and spleen are surrounded by a connective tissue capsule

Hormones that slow tumor growth are called________

Immunity that results from antibodies that pass the placenta from mother to fetus is called ______immunity.

Autoantibodies

_________ are phagocytic cells that are permanent residents of specific tissues and organs.

Lymphocytes may be found in which of the following tissues or organs?

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

The process by which antibodies bind to the antigen on the surface of cells, forming large immune complexes, is called__________ .

What do the letters HIV stand for?

When large numbers of antibodies encounter their antigenic targets, they interact to form a three- dimensional structure known as an)_________ .

Class II MHC molecules are found only on which of the following?

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 Skeleton

Articulations

Muscle Tissue

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The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration

The Special Senses

The Endocrine System

Blood

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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

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