Five Functions of Immune System
•Five functions of the immune system
•1.Surveillance:
•2.Defense:
•3.Regulation:
•4.Immunity:
•5.Tolerance:
•˜recognition of non-self or foreign antigen
•˜initiation of immune response (natural or acquired) to eliminate or inactivate antigen
•˜control of immune response by regulatory mechanisms to maintain homeostasis
•˜acquired protection following exposure to antigen
•˜induction of a state of unresponsiveness towards antigens