Quiz 3
Inflammation can be caused by the release of ______ from basophils which results in ________.
histamine; an increase in capillary permeability.
Interferons ___________.
interfere with viral replication within cells
What are considered the effectors of humoral immunity?
Antibodies
________ serve as antigen presenting cells and _______.
Both B and C are correct. Macrophages; exhibit class II MHC glycoproteins and Langerhans cells; display exogenous antigens
Fevers are beneficial to the "infection fighting" process because they ________.
Decrease replication of bacteria
Which of the following lists the bodys first, second, and third lines of defense in order?
External innate immunity, internal innate immunity, adaptive immunity
A membrane attack complex (MAC) is a protein grouping that ____________.
Forms a channel/hole in the target cell membrane that causes cytolysis
Which of the following would NOT be considered an antigen?
Glucose
Of the five classes of antibodies, ___________ has the capacity to fix complement and may also be attached to the surface of B-cells.
IgM
Upon exposure to bacteria, macrophages can secrete pyrogens, which ________.
Increases the body's "set point" temperature
Which is NOT one of the cardinal signs of inflammation?
Numbness
Complement proteins and antibodies coat a mircoorganism and provide binding sites, enabling macrophages and neutrophils to phagocytize the organism. This phenomenon is termed ________.
Opsonization
The process by which neutrophils are attracted to an injury site is _______.
chemotaxis
Exudate is ________.
fluid that leaves capillaries to "wash" the interstitial space of an injured tissue
Helper T cells recognize antigen fragments that are ____________.
presented in MHC II glycoproteins of APC's
The redness and heat of an inflamed are are due _______.
vasodilation