Home
Flashcards
Preview
Immune System 3.27.13
Home
Get App
Take Quiz
Create
Antimicrobial proteins
Enhance innate defenses
Include
: interferon and complement proteins
Interferon (IFN)
molecule leaves infected cell and blocks viral reproduction in neighboring cell
Anitbodies or Immunoglobulins (Ab/ Ig)
Small Y- shaped proteins excreted by B cells
Neutralize
agglutination and precipitation
opsonization
opsonization
marks foreign body for destruction by macrophages
antibodies do this
Complement protein
used against cellular antigens
destroys foreing substances
Fever
Abnormally high body temp
body's thermostat is reset upwards in response to pyrogens
Why are high fevers dangerouos
denature enzymes
Moderate fever causes
liver and spleen to sequester iron and zinc
increased metabolic rate- speeds tissue repair
body temp higher than ideal for microbial growth
Adaptive defenses
recognizes specific foreign substances
acts to immobilize, neutralize, or destroy
amplifies inflammatory response
Humoral
antibody-mediated immunity
cellular
cell-mediated immunity
Antigens
mostly large, complex molecules not normally found in body
Epitope
the part of an antigen that is recognized by the immune system
MHC proteins
read more about this
B lymphocytes
oversee humoral immunity- antibody production
T lymphocytes
non-antibody- producing cells- cell- mediated arm of immunity
Antigen-presenting cells
display antigens on MHCs
could technically be any cell but usually means cells with MHC ll
Author
souimet05
ID
212860
Card Set
Immune System 3.27.13
Description
Immune system exam 4
Updated
4/11/2013, 2:05:57 PM
Show Answers
Home
Flashcards
Preview