(28) Hypersensitivity IV Flashcards Preview

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Flashcards in (28) Hypersensitivity IV Deck (6):
1

(Type IV)

1. Does it involve antibodies

2. What happens in it?

3. Do pathological effects take place earlier or later than Type !-III? how much? why?

 

1. no, not at all

2. T cells directly recognize foreign antigen and cause inflammation and tissure injury

3. later; referred to as delayed (may take up to 24 hours); antigen-specific T cells haveing to increase in numbers

 

2

(Hypersensitivity IV)

(Contact Hypersensitivity)

1. Highly reactive chemicals that come in contact with the skin can do what?

1. modify self proteins resulting in a CD4 or CD8 T cells response

learn this graph

3

Atopic Dermatitis = type 1 hypersensitivity

Allergic Contact Dermatitis = type IV hypersensitivity

and then look at the delayed type hypersensitivity thing (on this slide)

4

D

5

C

6

B