chapter 21 Flashcards
In the list below, which type of cell is involved in adaptive immunity?
b cells
Which of the following is NOT a sign of inflammation?
fever
The first step in inflammation is __________.
the release of inflammatory chemicals
leukocytosis
. an increase in the number of white blood cells that are in circulation
margination
clinging of phagocytic cells to the inner walls of the capillaries
diapedesis
phagocytes squeeze through the capillary endothelium
chemotaxis
white blood cells migrate to the site of tissue damage
Which of the following is NOT a property of interferons (IFNs)?
IFNs stimulate B cells to produce antibodies.
A moderate fever is a protective adaptive response.
True
Humoral immunity is provided by __________.
antibodies
__________ are substances that can trigger the adaptive defenses and provoke an immune response.
antigens
__________ is the property of lymphocytes that prevents them from attacking the body’s own cells.
Self-tolerance
Self-reactive B cells are eliminated in the __________.
bone marrow
Which of the following is a characteristic of a secondary immune response?
A secondary immune response lasts longer than a primary immune response.
A vaccination works to establish __________.
artificial active immunity
IgG
most abundant class of antibodies
IgM
large, pentamer shaped antibody
IgA
dimeric antibody found in body secretions
IgD
antigen receptor found on B cells
IgE
antibody that mediates some allergies
Which is correctly matched
ytotoxic T cells: activated by antigens bound to MHC I
MHC II proteins are found on __________.
antigen-presenting cells
What is the second step of T cell activation?
co-stimulation
Which of the following is mismatched?
helper T cells: directly target and kill cancer cells
A graft that is transplanted from one person to a genetically identical individual (i.e., to an identical twin) is an example of a(n) __________.
isograft
severe combined immunodeficiency syndrome (SCID
genetic defect resulting in a shortage of B and/or T cells
AIDS
condition in which T helper cells are destroyed by a virus
rheumatoid arthritis
autoimmune disorder
immediate hypersensitivity
allergy
