immune exam 1 Flashcards
what are the 2 functions of the immune system
- differentiate between self and nonself
- defend the body against nonslef
what are the 2 functions of the immune system
- differentiate between self and non self
- defend the body against non self
what are the 2 phagocyte cell systems
granulocytes and monocytes
what system are phagocytic systems a part of
the internal defense system
what is the primary event in controlling and preventing infections
phygocytosis
what are phagocytes dervied from
bone marrow stem cells
what 4 factors promote phagocytosis
- naturally occurring opsonins
- leukotaxis (chemotaxis)
3.complement activation - acute phase proteins
what activated NK cells
interferons
what is a leukocyte that can recognize virally infected cells
NK cell
what is produced by virally infected cells and induces a state of viral resistance in surrounding uninfected cells, AND is produced early in the infection
interferon
What are the 3 types of acquired immunity
- active
- passive
- adoptive
describe active, passive and adoptive immunity
active- occurs after infection or shot (humoral)
passive- transfer of antibodies produced by one person to another person (humoral)
adoptive- transfer of immunocompetent cells (T/B cells) (cell mediated) from one person to another
What are the 3 functions of complement
- opsionization
- cheemotaxis
lysis
what is the main function of complement
to control inflammation
factors involved in immune status of host
- age
- general health
- genetic predisposition
- nutritional status
- stress level
