The body's fast, broad defence providing general protection against a variety of pathogens
The body's surveillance system that determines "self" from foreign substances
Immune cells designed to recognise and lyse viral infections or cancer cells
Crucial lymphocytes that enhance the functioning of cytotoxic T cells, B cells, and macrophages
A slower, more targeted immune process involving lymphocytes with specific antigen receptors
Immune response that operates at the cellular level, involving T lymphocytes from the thymus gland
Immune response mediated by B lymphocytes, providing protection against bacteria and neutralising toxins
