Popis: |
The human adaptive immune system is a marvel of nature – a complex and dynamic web of cells, tissues, and molecules that serves as a very capable system of defense throughout life. In contrast to the innate immune system that is similar in other animals, the highly regulated mammalian adaptive immune system appears designed to efficiently cope with constantly evolving microbial antigens with relative minimization of collateral damage to the host. After discussion of its major defining characteristics, we explore the building blocks of the adaptive immune system through the basic functional responses to infection. |