Immune response in 10 Flashcards
- A
Antigen infects cells
- M
Macrophage ingests non-self antigen and displays portion on it’s surface. (APC)
- H
Helper T-cell recognises antigen on the surface of macrophage and becomes active
- A
Active helper T-cell activates cytotoxic t-cells and B-cells specific to that antigen. Via cytokines
- C
Cytotoxic T-cells divide into active cytotoxic t-cells and memory t-cells
- A
Active cytotoxic t-cells kill infected cells
- B
At the same time b-cells divide into plasma cells and memory B cells
- P
Plasma cells produce antibodies that deactivate pathogen
- M
Memory t and memory b cells remain in the body to speed up response if the same antigen reappears.
- S
Suppressor T-cells stop the immune response when all antigens have been destroyed.