What is the immune system? Importance of the immune system

What is the immune system? Importance of the immune system immune system If you're often sick, feel fatigued or have other nagging symptoms you can't figure out, you may have a weakened immune system respiratory system The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies Antibodies

respiratory system The immune system is made up of cells and organs that protect your body from outside invaders such as bacteria, viruses, fungi, and parasites (

lymphatic system The immune system is comprised of an intricate network of lymphoid and nonlymphoid cells communicating via molecular messengers to provide surveillance against The role of the immune system is to prevent disease , and mainly consists of two types of white blood cell called phagocytes close phagocytesCells, such as