Question 1

Which class of cells is particularly abundant in the red pulp of the spleen?

Accepted Answer

A) T lymphocytes. 
B) free and fixed macrophages. 
C) B lymphocytes. 
D) neutrophils. 
E) Natural Killer cells. 
A) T lymphocytes. 
B) free and fixed macrophages. 
C) B lymphocytes. 
D) neutrophils. 
E) Natural Killer cells.

Question 2

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

Accepted Answer

A) right knee. 
B) right breast. 
C) left arm and shoulder. 
D) pelvic viscera. 
E) right knee and the right breast. 
A) right knee. 
B) right breast. 
C) left arm and shoulder. 
D) pelvic viscera. 
E) right knee and the right breast.

Question 3

Histamine increases blood flow and vascular permeability.This would account for all of the following changes that occur during inflammation except

Accepted Answer

A) redness of the inflamed tissue. 
B) chemotaxis of phagocytes. 
C) heat of the inflamed tissue. 
D) movement of defense proteins and cells into the interstitial space. 
E) swelling of the inflamed tissue. 
A) redness of the inflamed tissue. 
B) chemotaxis of phagocytes. 
C) heat of the inflamed tissue. 
D) movement of defense proteins and cells into the interstitial space. 
E) swelling of the inflamed tissue.

Question 4

All of the following are true of the primary response of humoral immunity except that

Accepted Answer

A) it depends on antigen triggering the appropriate B cell. 
B) it requires B cell differentiation into plasma cells. 
C) it is delayed by the memory cell stage. 
D) circulating antibodies undergo a gradual,sustained rise. 
E) it peaks 1 to 2 weeks after the initial exposure. 
A) it depends on antigen triggering the appropriate B cell. 
B) it requires B cell differentiation into plasma cells. 
C) it is delayed by the memory cell stage. 
D) circulating antibodies undergo a gradual,sustained rise. 
E) it peaks 1 to 2 weeks after the initial exposure.

Question 5

Various types of macrophages are derived from

Accepted Answer

A) lymphocytes. 
B) monocytes. 
C) neutrophils. 
D) eosinophils. 
E) basophils. 
A) lymphocytes. 
B) monocytes. 
C) neutrophils. 
D) eosinophils. 
E) basophils.

Question 6

What is MALT? What role does it play in the body's defenses?

Accepted Answer

MALT is an acronym for mucosa-associated

Question 7

Immunoglobulins that are most abundant and are responsible for resistance against many viruses,bacteria,and bacterial toxins are

Accepted Answer

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

Question 8

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 9

The thoracic duct originates from an expanded chamber called the

Accepted Answer

A) thoracic sinus. 
B) cisterna chyli. 
C) thoracic trunk. 
D) hilum. 
E) thoracic ventricle. 
A) thoracic sinus. 
B) cisterna chyli. 
C) thoracic trunk. 
D) hilum. 
E) thoracic ventricle.

Question 10

The only antibodies that normally cross the placenta are

Accepted Answer

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

Question 11

The phagocytic antigen-presenting cells belong to the ________ group.

Accepted Answer

A) tumor-suppressing 
B) complement 
C) interferon 
D) monocyte-macrophage 
E) lymphatic 
A) tumor-suppressing 
B) complement 
C) interferon 
D) monocyte-macrophage 
E) lymphatic

Question 12

Which of the following is not a characteristic of AIDS?

Accepted Answer

A) has killed at least 1/2 million people in the United States 
B) is spread most often through sexual contact 
C) attacks the T helper (CD4)cells 
D) is declining worldwide 
E) almost always eventually fatal 
A) has killed at least 1/2 million people in the United States 
B) is spread most often through sexual contact 
C) attacks the T helper (CD4)cells 
D) is declining worldwide 
E) almost always eventually fatal

Question 13

Lymphatic tissues are connective tissues dominated by

Accepted Answer

A) mast cells. 
B) plasma cells. 
C) fibroblasts. 
D) monocytes. 
E) lymphocytes. 
A) mast cells. 
B) plasma cells. 
C) fibroblasts. 
D) monocytes. 
E) lymphocytes.

Question 14

T cells and B cells can be activated only by

Accepted Answer

A) pathogens. 
B) interleukins,interferons,and colony-stimulating factors. 
C) cells infected with viruses,bacteria,or cancer cells. 
D) exposure to a specific antigen at a specific site in a plasma membrane. 
E) disease-causing agents. 
A) pathogens. 
B) interleukins,interferons,and colony-stimulating factors. 
C) cells infected with viruses,bacteria,or cancer cells. 
D) exposure to a specific antigen at a specific site in a plasma membrane. 
E) disease-causing agents.

Question 15

Cells that help regulate the immune response are ________ cells.

Accepted Answer

A) B 
B) plasma 
C) helper T 
D) cytotoxic T 
E) NK 
A) B 
B) plasma 
C) helper T 
D) cytotoxic T 
E) NK

Question 16

Cytotoxic T cells can attack target cells with which of the following chemical weapons?

Accepted Answer

A) secrete strong acid 
B) secrete organic solvent 
C) secrete free radicals 
D) secrete a cytokine that triggers apoptosis 
E) secrete mutant proteins that get incorporated into the target's DNA 
A) secrete strong acid 
B) secrete organic solvent 
C) secrete free radicals 
D) secrete a cytokine that triggers apoptosis 
E) secrete mutant proteins that get incorporated into the target's DNA

Question 17

Lymphatic vessels commonly occur in association with

Accepted Answer

A) hyaline cartilage. 
B) blood vessels. 
C) adipose tissue. 
D) sensory nerve endings. 
E) both blood vessels and adipose tissue. 
A) hyaline cartilage. 
B) blood vessels. 
C) adipose tissue. 
D) sensory nerve endings. 
E) both blood vessels and adipose tissue.

Question 18

The cell that dominates the deep cortical region of a lymph node is the ________ cell.

Accepted Answer

A) B 
B) T 
C) plasma 
D) nodule 
E) NK 
A) B 
B) T 
C) plasma 
D) nodule 
E) NK

Question 19

Characteristics of adaptive defenses include

Accepted Answer

A) versatility. 
B) tolerance. 
C) memory. 
D) specificity. 
E) All of the answers are correct. 
A) versatility. 
B) tolerance. 
C) memory. 
D) specificity. 
E) All of the answers are correct.

Question 20

Stress can affect the immune response in all of the following ways except by

Accepted Answer

A) inhibiting glucocorticoid release. 
B) depressing the inflammatory response. 
C) reducing the number of phagocytes. 
D) inhibiting interleukin secretion. 
E) increasing the level of cortisol. 
A) inhibiting glucocorticoid release. 
B) depressing the inflammatory response. 
C) reducing the number of phagocytes. 
D) inhibiting interleukin secretion. 
E) increasing the level of cortisol.

Exam 22: The Lymphatic System and Immunity

Which class of cells is particularly abundant in the red pulp of the spleen?

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

Histamine increases blood flow and vascular permeability.This would account for all of the following changes that occur during inflammation except

All of the following are true of the primary response of humoral immunity except that

Various types of macrophages are derived from

What is MALT? What role does it play in the body's defenses?

Immunoglobulins that are most abundant and are responsible for resistance against many viruses,bacteria,and bacterial toxins are

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

The thoracic duct originates from an expanded chamber called the

The only antibodies that normally cross the placenta are

The phagocytic antigen-presenting cells belong to the ________ group.

Which of the following is not a characteristic of AIDS?

Lymphatic tissues are connective tissues dominated by

T cells and B cells can be activated only by

Cells that help regulate the immune response are ________ cells.

Cytotoxic T cells can attack target cells with which of the following chemical weapons?

Lymphatic vessels commonly occur in association with

The cell that dominates the deep cortical region of a lymph node is the ________ cell.

Characteristics of adaptive defenses include

Stress can affect the immune response in all of the following ways except by

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