The immune system is a system of biological structures and processes within an organism that protects against disease. To function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue. #Glogster #ImmuneSystem
A TED-Ed Animation Explaining How Vaccines Work to Help the Body Stave Off Infections, Illness, and Disease
Introduction to the Immune System --- This video explains how the immune system works by using real life situations. It starts with the external barriers to microbial attack such as the skin and mucus membranes.