Introduction to the Immune System
A healthy immune system has the ability to distinguish between the body’s self-components and those of foreign origin, and to decide on whether or not to respond and how to respond to foreign invaders. Therefore, the immune system is equipped with several lines of defense, such as innate and adaptive immunity. This introduction to the immune system looks at the various functions and components of the innate and the adaptive immunological lines of defense, and briefly describes the types of immunization.
KeywordsInnate immunity Complement Adaptive immunity T cells B cells Clonal selection theory Immunization MHC Humoral Cellular
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