Immune Systems
Overview
(2026 Expert-Verified Final
Exam Q & A )
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, Immune System Cells that recognize and neutralize foreign
substances.
Specificity Immunity targeting specific pathogens only.
Memory Rapid response upon reexposure to pathogens.
Cellular Immunity T cells directly attack foreign or diseased cells.
Humoral Immunity B cells use antibodies to target pathogens.
Natural Active Immunity Own antibodies produced after natural infection.
Artificial Active Immunity Antibodies produced after vaccination.
Vaccine Dead or weakened pathogens stimulating immune
response.
Booster Shots Periodic immunizations to enhance immune
memory.
Natural Passive Immunity Temporary immunity from antibodies of another
person.
2026