Immune system Definition & Meaning - Merriam-Webster

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 skeletal system immune system to produce antibodies to that disease Active immunity can be acquired through natural immunity or vaccine-induced immunity Natural immunity

endocrine system Description This interactive module introduces the anatomy of the immune system and walks through the timeline of a typical immune response