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Transcript
reign invaders - viruses, bacteria, allergens, toxins and
rasites- constantly bombard our body.
27
YOUR ACTIVE IMMUNE DEFENSES
Innate Immunity
Adaptive Immunity
- invariant (generalized)
- early, limited specificity
- the first line of defense
- variable (custom)
- later, highly specific
- ‘‘remembers’’ infection
1. Barriers - skin, tears
2. Phagocytes - neutrophils,
macrophages
3. NK cells and mast cells
4. Complement and other proteins