So the innate immune system begins to act immediately and it's the primary line of defense against our pathogens. Now, another name for the innate immune system is the non specific immune system. The question is, what do we mean by nonspecific? Well, nonspecific implies that the innate immune system does not actually depend on the presence of any specific antigen like the acquired immune system does. And what that means is the innate immune system will attack all the different types of pathogens without actually considering what type of antigen is found on those pathogens. That is, it attacks all the pathogens with equal likelihood.