test 4 Flashcards

(29 cards)

1
Q

temporal arteritis

A

inflammation and damage to the blood vessels that supply blood to the head; unknown cause;
feel a string like a pencil

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2
Q

giant cell arteritis.

A

temporal-if the inflammation affects the arteries in your neck, upper body and arms, it is called

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3
Q

immune system related diseases

A
autoimmune disease
hypersensitivity disorders (allrgis)
immunodeficencies
neoplasia (leukemias, lyphomoas, others)
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4
Q

autoimmune disease

A

caused y erroneous attack of the immune system on SELF tissues

dont know most pathogenesis

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5
Q

exs of autoimmune disease

A
rheumatoid arthritis
multiple sclerosis
type 1 diabetes
graves disease
mayasthenia gravis
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6
Q

Autoimmunity

A

Immune responses directed against self antigens (self tissues). Does not necessarily lead to tissue damage

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7
Q

Autoimmune disease

A

An inappropriate response of the immune system against self antigens which results in tissue damage

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8
Q

B cells can produce

A

autantiobodies

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9
Q

T cells can produce

A

autoantigens

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10
Q

mechanisms to control autoimmunity 1

A

most autoantibodies are IgM with low affinity and are present in low concentrations. IgM antibodies remain intravascular

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11
Q

mechanisms to control autoimmunity 2

A

autoantigens are often sequestered

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12
Q

mechanisms to control autoimmunity 3

A

autoreactive t cells are deleted in thymus (neg selection) or in periphery (lack of costimulation, periphereal toleracne)

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13
Q

mechanisms to control autoimmunity 4

A

autoreactive b cells are deleted in bone marrow

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14
Q

mechanisms to control autoimmunity 5

A

autoreactive t cells need to be activated before they can do damage; they need to see their target in antigen presenting cells and need to get the right signasl to become harmless

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15
Q

mechanisms to control autoimmunity 6

A

regulatory cells may control autorective cells

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16
Q

Molecular mimicry

A

Sequence homology between microbial and self proteins. Immune system responds to microbes and cross-reactive autoimmunity to self-antigens develops.example: RHEUMATIC FEVER

17
Q

Failure of regulatory mechanisms:

A

failure of tolerance, lack of regulatory T cells, cytokine imbalances

18
Q

how do autoimmune diseases arise?

19
Q

t cells mature and educated in

20
Q

genes and autoimmune disease

A

HLA(MHC) is the strongest link

21
Q

organ specific autoimmune disease

A

targets a specific organ

antibody mediated organ specific autoimmune disease

cell-mediated organ specific autoimmune diseases

22
Q

antibody mediated organ specific autoimmune diseases

A

Grave’s diease
Myasthenia gravis
Goodpasture’s syndrome

23
Q

cell mediated organ specific autoimmune disease

A

multiple sclerosis

type 1 disease

24
Q

systemic autoimmune disease

A

systemic lupus erthematosus

rheumatoid arthritis

25
classification of autoimmune disease
organ specific (antibody or cell mediated ) auto immune dsease and systemic autoimmune diseases
26
graves disease
stimulating autoantibodies
27
Myasthenia gravis
blocking autoantibodies
28
Good pasture's syndrome
destructive autoantibodies
29
Graves' (Basedow) disease
production of autoantiobies agianst the TSH receptor. Binding of it mimics effect of TSH ad stimulates thyroid gland with release of high levels of thyroid hormones in the blood.