Set 24 Micro Immuno Flashcards
What are the phagocytic cells of the immune system?
neutrophils, monocytes, and macrophages
What are the inflammatory mediator cells?
basophils, mast cells, eosinophils
What is the function of cytokines?
activate helper and cytotoxic T cells, kill pathogen or tumor cells
What is the function of NK cells?
can inactivate pathogens
What is the function of Killer T cells?
kill virus-infected cells by triggering target cell suicide
What is the function of Helper T cells?
help in antigen recognition and regulation
What do helper T cells secrete?
cytokines
What is an antigen?
target of antibodies and T cells
What is an epitope?
part of an antigen recognized by immune system
What is the function of CD4/Class I cells?
informs killer T cells of what is going on inside cells
What is the function of CD8/Class II cells?
informs helper T cells of problems outside cells
What is the function of an antibody?
tags an invader
What is Type I hypersensitivity?
immediate hypersensitivty (peanut, venom, penicilin) (outside in)
Which cells function in Type I hypersensitivity?
IgE, mast cells, basophils, allergic
Examples of Type I hypersensitivity:
anaphylaxis, hay fever, and asthma
What is Type II hypersensitivity?
antibody mediated (inside in)
Which cells function in Type II hypersensitivity?
IgG and IgM cause cell lysis
Examples of Type II hypersensitivity:
blood group incompatibility, pernicious anemia, myasthenia gravis