What is Immune System? Immune system is a vast network of cells tissues and organs that coordinates and defenses your body against any threats to your health. Without this system your body get exposed to bacteria viruses or fungus, which may give you a slight infections or it can sue your life(fatal). How Immune system works? Usually Immune system depends on white blood cells which incorporates in killing viruses or bacteria in your body. They are diversified and play their role depending upon the situation and purposes. Leucocytes Leucocytes are white blood cells produced in bone marrows, there are several others like eosinophils, basophils etc.… Varies depending on the role they perform. Travels into the blood stream and migrates through the lymphatic system. A network of cells which helps to clear out the toxins or wastes from our body cells. Almost 4000 – 11000 in every micro liter act as security and constantly search for any threads in our body that is suspicious. Constantl...