The Immune System Flashcards
(9 cards)
1
Q
the immune system
A
- a complex system: cellular & molecular processes
- identify self & non self to protect body
2
Q
primary cellular defence
A
- lymphocytes & monocytes
3
Q
primary molecular defence
A
- antigens & lymphokines
4
Q
non-specific immunity
A
- physical & biochemical barrier
- cellular components
- humoral components
5
Q
specific immunity
A
- pathogens/antigens
- enhanced response when same organism is received subsequent times
- mediated by both humeral & cellular responses
6
Q
neutrophils
A
- most found attached to capillary linings
- kill pathogens
7
Q
macrophages
A
- clean up after attack & defence
- degrade dead tissue & cells
8
Q
natural killer cells
A
- subpopulation of lymphocytes
- kill virus-infected & tumour cells in-vivo w/out T Helper cells
9
Q
passive immunity in animals
A
- colostrum = high [ ] of antibodies for newborn animals
- hyperimmunised egg powder = mother milk not available, can replace missing nutrients & antibodies
