Immune responses in skin Flashcards
1
Q
What in bacterial pyoderma?
A
Bacterial skin infection, pus may not always be visible
2
Q
Discuss Type 1 hypersensitivity
A
IGE mediated
Occurs within 30 mins
Mast cell degranulation
Flea allergy dermatitis
3
Q
Discuss type 2 hypersensitivity
A
- Antibody dependant
- Cytoxicity
- 5-10 hours
- NK/ macrophage then binds to the antibody and kills target
4
Q
Discuss type 3 hypersensitivity
A
- involves immune complexes
- 4-8 hours
5
Q
Discuss type 4 hypersensitivity
A
-24-72 hours
-T cell mediates
Inflammation occurs at local site NOT draining lymph node
-Tuberculin testing
