Protecting Against Diseases
Pathogens
Disease-causing microorganisms Ex: COVID-19, HIV
Pathogens Enter The Skin
Cuts and abrasions
Airborne -> respiratory system
Body's Protection Mechanism
Skin: oil and sweat
Mucous Membrane: sticky fluid mucus
Immune Response
Specific
Antigens
Two-Part Assault
Non Specific
Fever: high body temperature
Inflammation: histamine
Protein Activation: interferons
White Blood Cells
Macrophage
Neutrophil
Natural Killer Cell