INNATE IMMUNITY Flashcards

(56 cards)

1
Q

innate immunnity is

A

resist infection by means of normally present body functions

  • no prior exposure
  • lacks memory & specificity
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2
Q

response

A

immediate

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3
Q

3 lines of defense in the human body

A

1) First line of defense
2) Second line of defense
3) Third line of defense

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4
Q

external defense system

A

First line of defense

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5
Q

skin pH

A

pH 5.5 to 5.6

ave. 5.6

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6
Q

phenomenon that normal flora keeps other microorganisms from establishin in areas of the body

A

Competitive exclusion

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7
Q

internal defense system in which both cells and soluble factors play essential parts

A

2nd line of defense (innate immunity)

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8
Q

composition of 2nd line of defense (innate immunity)

A

phagocytosis, inflammation, APRs, antimicrobial substances(complement, properdin, interferon alpha & beta, TNF, betalysin)

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9
Q

cellular components of 2nd line of defense (innate immunity)

A

mast cells
macrophage
neutrophils
NK cells

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10
Q

humoral component of

A

complement
lysozyme
interferon

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11
Q

mechanism that allows recognize, remember, and respond to a specific stimulus

A

Third line of defense (Acquired immunity)

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12
Q

cellular component of Third line of defense (Acquired immunity)

A

t lymp, b lymp, plasma cell

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13
Q

humoral component of Third line of defense (Acquired immunity)

A

antibodies and cytokines

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14
Q

normal serum constituents that increase rapidly by at least 25% due to infection, injury or trauma to the tissues

A

Acute phase Reactants

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15
Q

site of production of APRs

A

hepatocytes

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16
Q

cytokines are

A

intracellular signalling polypeptides

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17
Q

indicator of inflammation

A

APRs

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18
Q

APR/s that increase 1000x

A

CRP

Serum amyloid A

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19
Q

Nonspceific indicator of inflammation

A

CRP

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20
Q

CRP marker for

A

cardiac

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21
Q

thought to be an antibody to the c-polysacharide of the pneumococci

A

CRP

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22
Q

significant risk factor for myocardial infarction and ischemic stroke

A

HS-CRP

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23
Q

Regulates removal/metabolism of cholesterol

A

Serum amyloid A

24
Q

decrease value of Alpha 1-antitrypsin

A

emphysema & Juvenile cirrhosis

25
ceruloplasmin function/s
1. transport copper | 2. acts as Ferroxidase
26
depletion of ceruloplasmin found in what condition?
Wilson's disease
27
can convert ferrous iron(Fe2+) to ferric iron (Fe3+)
Ferroxidase
28
overall reaction of the body to injury or invasion by a infectious agent
Inflammation
29
primary inflammatory response
Vasodilation
30
increase in cappilary permeability
Vasodilation
31
movement of WBC through squeezing
diapedesis
32
stages of inflammation
1. Vascular response 2. Cellular response 3. Resolution & repair
33
resolution & repair is initiated by
fibroblast
34
5 cardinal signs of inflammation
1. rubor (redness)-inc. blood flow 2. Dolor (pain) - nerve is pressed 3. Calor (heat) 4. Tumor (swelling) - edema 5. Functio laesa (loss of function)
35
starfish larvae
phagocytosis is observed here by Elli Metchnikoff
36
phagocytic cells
1. Basophils 2. Eosinophils 3. Neutrophils 4. Monocytes 5. Macrophages 6. dendritic cells
37
phagocytosis is initiated as a result of
tissue damage
38
most efficient phagocytic cells
Dendritic cells
39
coating of cells | -"to prepare for eating"
opsonization
40
movement of cells to certain direction under stimulation of a chemical substance such as opsonin
Chemotaxis
41
test for chemotaxis
Boyden Chamber assay
42
last stage of phagocytosis
DIGESTION / | Formation of neutrophil extracellular traps
43
``` ABNORMAL = chemotactive activity NORMAL = Random activity ```
Job syndrome
44
ABNORMAL BOTH = Chemotactic activity & Random activity
Lazy leukocyte
45
microorganism inside the cytoplasm of cell
phagosome
46
strongest mechanism to kill microorganism
Oxygen dependent/ Respiratory burst
47
a disease that has impaired respiratory burst/ deficiency of NADPH oxidase
Chronic Granulomatous disease (CGD)
48
3 TYPES OF DENDRITIC CELLS
1. Langerhan cells 2. interdigitating dendritic cells 3. interstitial dendrtic cells
49
dendritic cells of hollow organs
interstitial dendrtic cells
50
dendritic cells in lymphoid tissues
interdigitating dendritic cells
51
dendritic cells in skin
Langerhan cells
52
fusion of phagosome with lysosomal granules
phagolysosome
53
transmembrane recptor that recognize different types of PAMPS
Toll-Like Receptors (TLRs)
54
large groups of microorganisms recognized by PRRs
Pathogen-associated molecular patterns (PAMPS)
55
antibody must attach to the ____ region for the microorganisms to bephagocytosed
Fc portion/region
56
immune complex
Ag-Ab formed