Humoral immunity is a branch of the immune system that involves the production of antibodies to target and neutralize pathogens in the body. Antibodies are proteins produced by B cells that specifically recognize and bind to antigens on the surface of foreign invaders such as viruses, bacteria, and parasites. This immune response is critical for protecting the body against infections and is particularly important for fighting off pathogens that are circulating in the bloodstream or in extracellular spaces. Humoral immunity works in conjunction with cellular immunity, which involves the activation of T cells to directly attack infected cells. Together, these components of the immune system help to provide a comprehensive defense against a wide range of pathogens.