Innate immunity Flashcards
1
Q
innate immunity
A
is the first line of defence, and responds to a broad range of microbes
2
Q
traits of innate immunity
A
- rapid
- no memory is formed
- response is not stronger after being exposed
3
Q
external innate imunity
A
- epithelia acts as a physical, chemical barrier with intraepithelial lymphocytes, and has flora. there is also the mucciliary part, and flushing out done by saliva, urine, tears
4
Q
what is the blood differential test
A
it measures the percentage of each type of white blood cell you have in blood.
5
Q
what are normal blood test results
A
neutrophils: 60-70%
lymphocytes: 20-30%
monocytes: 2-8%
esoinophils: 2-4%
basophils: 1%
6
Q
function of monocytes
A
phagocytosis, inflammation, T cell activation, tissue repair
7
Q
neutrophils
A
phagocytosis, inflammation
8
Q
NK cells
A
killing infected or tumor cells
9
Q
dendritic cells
A
phagocytosis, activation of naive T cells
10
Q
mast cells
A
inflammation
11
Q
esoinophils
A
defence against parasites
12
Q
what is the role of phagocytes in innate immunity
A
- entry of pathogen
- recognition of pathogen
- phagocytosis and killing of pathogen
- induction of inflammation
- attraction of cells to infection site
- pathogen elimination or adaptive immunity activation
- tissue repair and remodling
