How your immune system fights an infection
Process map by Brian. 16 steps, 2 layers. Tags: biology, health, immune system.
- The germ: A virus or bacteria gets in
- Skin and first defenses: Skin, mucus and stomach acid try to block it
- Skin and first defenses: Did it get past the barriers?
- Innate immune cells: Macrophages and neutrophils swallow what they can
- Innate immune cells: Chemical alarms cause swelling, redness and fever
- T cells and B cells: Dendritic cells show pieces of the germ to T cells
- T cells and B cells: B cells make antibodies that lock onto the germ
- T cells and B cells: Killer T cells destroy infected cells
- The germ: Is the infection cleared?
- Memory cells: Memory cells remember the germ for years
- Memory cells: Next time the response is fast, often before you feel sick
- Skin and first defenses: The germ is stopped at the door