stages of immune response Flashcards
1
Q
recognition stage (1)
A
antigens are recognized by circulating lymphocytes and macrophages
2
Q
proliferation stage (2)
A
the dormant lymphocytes proliferate and differentiate into cytotoxic (killer) T cells or B cells responsible for formation and release of antibodies
3
Q
response stage (3)
A
cytotoxic T & B cells perform cellular and humoral functions respectively
4
Q
effector stage (4)
A
antigens are destroyed or neutralized through the action of antibodies, complement, macrophages and cytotoxic T cells
5
Q
humoral response (B cells)
A
- bacterial phagocytosis and lysis
- anaphylaxis
- allergic hay fever and asthma
- immune complex disease
- bacterial and some viral infections
6
Q
cellular responses (T cells)
A
- transplant rejection
- delayed hypersensitivity (tb reaction
- graft-vs-host disease
- tumor surveillance or destruction
- intracellular infections
- viral, fungal and parasitic infections
