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