The Immune System: What It Is and How It Works
The immune system consists of the cells, tissues, organs, systems, reactions, reflexes, processes and mechanisms that protect our body from disease, whatever form it may take. The immune system works in such a way that it differentiates between what is part of the body and what is not. In other words, it recognizes foreign organisms or … Read more about The Immune System: What It Is and How It Works