G. 2nd Line Of Defense Flashcards

0
Q

Macrophage will do what when it finds a foreign thing?

A

Phagocytose the foreign thing, and display it on itself

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1
Q

APC means?

A

Antigen presenting cell

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2
Q

Patigen

A

A foreign thing presented on the APC for other cells to see

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3
Q

Elongated pseudopods are called?

A

Dendrites

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4
Q

2nd line of defense is

A

Non specific

Non adaptive

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5
Q

4 Signs of inflammatory response

A

Rubor - redness

Calor - heat

Tumor - swelling

Dolor - pain

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6
Q

An injury is followed by

A

Vasoconstriction —> release cytokines

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7
Q

Cytokines

A

Tell other cells what to do

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8
Q

Second major event from point of injury

A

Vasodilation —-> increase permeability of vessels

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9
Q

Third major event from point of injury

A

Release histamines by mast cells. “Call for help”

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10
Q

Histamines cause

A

Vasodilation

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11
Q

What are the 3 major events of inflammation

A

Injury followed by vasoconstriction —> release cytokines

Vasodilation

Release histamines by mast cells

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12
Q

Macrophage are drawn to the site by

Example of?

A

Positive chemotaxis “mobilization”

2nd line defense

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13
Q

Diapedisis

A

WBC migrate out of the blood into the tissue

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14
Q

Who responds to the mast cells call for help?

A

Macrophage - 2nd line

Lymphocytes - 3rd line

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15
Q

Opsons

A

Can coat pathogen and make it more readily recognized

16
Q

Phagosome

A

Vesicle created by phagocytosis

17
Q

Lysosomes

A

Contain digestive enzymes

18
Q

Granules contain?

A

Contain H2O2, OH-, O2-

Which are toxic to bacteria

19
Q

Where do granules release their chemicals?

A

To the phagolysosome

20
Q

Phagolysosome

A

The combination of the phagosome and lysosome

21
Q

What happens to a white blood cell that has recently phagocytosed

A

Fermentation - in crease in acid, decreases pH; enzymes function at a higher level

10x increase in abilities

22
Q

Fever inducers are

A

Pyrogens

23
Q

Endogenous pyrogens

A

Released by the host

24
Q

Exogenous pyrogens

A

Comes from outside the host

25
Q

Example of exogenous pyrogen

A

Lipopolysaccharides of a gram negative

Endotoxic

26
Q

Monocytes

A

Release pyrogens

27
Q

Cells normally release what vitamin?

What stops its release?

What does this do to the bacteria?

A

Iron

Fever

Inhibits, or starves them

28
Q

What are the two anti microbial proteins, that are part of the chemical arsenal?

What do they do?

A

Interferon

Complement

Help the human fight infection