Introduction to the immune system

immune system The role of the immune system is to prevent disease As a part of this there are two types of white blood cell called phagocytes close phagocytesCells, such as

The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies Antibodies muscular system The cells that are activated in the adaptive immune response undergo clonal expansion which means that they massively proliferate And each time the adaptive