Innate Immunity Barriers
- Skin Protects Against Pathogens
- Normal Flora Outcompete Pathogens
- Lysozyme in Saliva, Tears, and Mucus
- Mucous Traps Pathogens
- Cilia Remove Mucus
- Acid and Digestive Enzymes in the Stomach Kill Pathogens
Innate Immunity Cellular Response
- Natural Killer Lymphocytes Attack Abnormal Cells
- Neutrophils in Blood
- Infected Cells Release Interferon
- Complement Proteins Lyse Pathogens/Infected Cells
- Dendritic Cells in Tissue
- Macrophages in Tissue
Humoral Adaptive Immunity
- B Cell Binds Free Floating Antigen
- B Cell Presents Antigen to Helper T Cell
- Helper T Cells Help B Cells Develop Antigen Specificity
- Plasma B Cells Secrete Antibodies
- Memory B Cells Cause Faster Secondary Response
Cell-mediated Adaptive Immune Response
- Macrophages and Dendritic Cells Present Antigens
- T Cell Develops Antigen Specificity
- Regulatory T Cells Suppress Response
- Memory T Cells Cause Faster Secondary Response
- Cytotoxic T Cells Lyse Infected Cells
- Infected Cells Present Antigen On Surface