Two types of immune systems in a human body are acquired and innate. cell mediated immunity is called so because cells like T-lymphocytes provide immunity/T-ce1ls kill or destroy the antigens. Humoral immunity antibody mediated immunity is called so because of it consists of antibodies that are present in humours or body fluids, such as are present in humours or body fluids, such as plasma, lymph and external secretions wheres cell mediated immunity is provided by B-cell and T-cells.
