Mastering A&P 2 Ch. 22 Assignment

Each of these is a class of immunoglobulins except __________.

Immunoglobulin B

What is shown in this image?

The germinal center, dendritic cells, and subcapsular space of a lymph node

All of these types of cells are lymphocytes except ___________.

Y2K

Which label or labels indicate(s) the antigen binding site?

The two sites labeled with the letter A

Which of these statements about lymphocytes is false?

They are phagocytic.

Which of these is not a property of lymphatic capillaries?

They are smaller than blood capillaries.

Which of the following types of cells display protein fragments produced by the cancer within them?

all nucleated cells

Delayed hypersensitivity is a type of __________.

allergy

Class II MHC proteins are found on which of the following cell types?

antigen-presenting cells

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

blood flow diminished or eliminated around the site of injury

Which class of MHC proteins presents exogenous antigens?

class II MHC proteins

What defense mechanism is shown in the images above?

complement

What role do interferons play in the immune system?

coordination of defenses against viral infections

Stress suppresses the immune response through the action of __________.

corticosteroids

The lymphocytes that enter tissues and directly attack antigens are __________ cells.

cytotoxic T

Which defense cells can specifically identify and directly kill disease cells?

cytotoxic T lymphocytes

Which of these is not one of the nonspecific defenses?

immunoglobulins

A change in the immune system that rarely accompanies aging is __________.

improved immunological surveillance

Immunity that results from vaccination against influenza is classified as __________.

induced active

Which of these is not a lymphoid organ?

liver

The lymphoid tissue of the spleen ("white pulp") contains many __________.

lymphocytes

Which cell type is essential to the immune response?

lymphocytes

Which of these defense cells are not phagocytic?

lymphocytes

B cells are __________.

sensitized by exposure to antigen activated by helper T cells capable of division *B cells have all of these properties.

Autoimmune illness results from a failure of what aspect of immunity?

tolerance

What aspect of the immune response is indicated by the brown line in the image (indicated by the red arrow)?

Antibody titer

Steps in antigen presentation include which of these?

Antigen presentation includes all of these steps.

Which of the following is true of both lymphatic capillaries and blood capillaries?

Both types are composed of endothelium

Class I MHC proteins are recognized by which of the following cell types (that are destined to become T cells)?

CD8

Which major class of lymphocytes become cytotoxic T cells?

CD8 cells

What is the structure indicated by the red arrow?

Class I MHC

Which class of antibody forms a five-antibody starburst?

IgM

Which of these is an example of interaction between the nervous system and the immune system?

Cytokines affect the hypothalamus. CNS innervates dendritic cells in the skin. Stress suppresses immune function. *All of these are examples of interaction between the nervous system and the immune system.

Which class of immunoglobulins contains 10 heavy chains?

IgM

What defense mechanism is shown in this image?

Destruction by an NK cell

Which class of immunoglobulins sensitizes cells to allergens?

IgE

The class of antibody that produced first in the fetus at about four months of development is __________.

IgM

Which of these is not a property of the immune response?

It must be acquired.

Into which blood vessel will lymph flow if it starts at the red arrow?

Left subclavian vein

Which of these is not a step in humoral immune defense?

T cells secrete immunoglobulins.

Which of the labels indicates a structure through which lymph flows?

The small green-colored structure labeled C (in this case A)

Natural Killer (NK) cells __________.

engage in immunological surveillance kill cancer cell shunt for tumor cells *NK cells perform all of these roles.

What role do phagocytes play in the immune system?

engulfing pathogens and cell debris

Activated macrophages release endogenous pyrogens that cause __________.

fever

Which class of T lymphocyte is killed by the AIDS virus?

helper T

Which defense cells secretes lymphokines that regulate immunity?

helper T cells

The composition of lymph is most similar to __________.

plasma

Which of these organs does not drain its lymph into the thoracic duct?

right arm