El sistema inmune / The immune system

RESUMO

Many are these aspects of immunology that can be approached; it is difficult to refer to all of then in particular, considering both the volume of information gathered and the availability of space. This review outstands and updates the basic aspects of normal immunology thath are considered to be important due to their implication in the clinic area and for a better understanding of the immunopathologic phenomenon that physicians should face in their daily practice. There is a description of the different anatomic components of the immunologic suystem-pluripotential cells, primary and secondary lymophoid organs-as well as their physiologic aspects specific immune answer. Immunologic induction and tolerance phases are given in detail as well as the regulation of the immune answer to antigens