Humoral immunity is a critical component of the adaptive immune system, primarily mediated by B cells and the antibodies they produce. Unlike cell-mediated immunity, which involves T cells, humoral immunity focuses on the production of antibodies that circulate in bodily fluids, or "humors," to neutralize pathogens and toxins. This form of immunity plays a crucial role in identifying and neutralizing foreign substances, including toxins, which are often the focus of toxicological studies.