immune Flashcards
1
Q
fuctional divisions of the immune system
A
- innate
- adaptive
2
Q
divisions of innate immunity
A
- external defense system
- mucous membranes
3
Q
Enternal defense system
A
anatomic barrier, endogenous secretions, inflammatory response, and activities of phagocytic cell systems
4
Q
what are the phsgocytic cell systems
A
monocytes and granulocytes
5
Q
factors that promote phagocytosis
A
opsonin
chemotaxis
completement activation
acute phase proteins
6
Q
what are the natural killer cells
A
leukocytes and interferons
7
Q
leukocytes are
A
capable of recognizing cell surface changes on virally infected cells
8
Q
interferons are
A
cytokine activated NK cells
9
Q
who produces interferons
A
virally infected cells and lymphocytes
10
Q
what does an interferon induce
A
state of antiviral resistance surrounding uninfected cells
11
Q
are interferons produced early or late in infection why?
A
early
