Disorders of the Immune System Flashcards
What is hypersensitivity?
Exaggerated/inappropriate immune response = tissue damage.
What type of hypersensitivity is this describing?
Antibody reactions that respond to altered components of human cells or directed towards cell surface receptors.
Type II
What type of hypersensitivity is this describing?
IgG and soluble antigens (own tissue or foreign) form immune complexes.
Type III
What type of hypersensitivity is this describing?
Delayed hypersensitivity. T-cell mediated.
Type IV
What are some examples of type II hypersensitivity reactions?
- Haemolytic disease of the newborn
2. Grave’s, myasthenia gravis
What is the main example of type III hypersensitivity reactions?
SLE
What are some examples of type IV hypersensitivity reactions?
- TB
- Type 1 diabetes mellitus
- Coeliac disease
- IBD
- Psoriasis