Hypersensitivity Flashcards
1
Q
What is hypersensitivity?
A
a state of altered reactivity in which the body reacts with an exaggerated immune response to foreign agents- allergy
2
Q
What is an allergen?
A
is an antigen that causes an allergic reaction
3
Q
how many types of hypersensitivity?
A
4
4
Q
Describe type 1 hypersensitivity
A