complement activation
Any process involved in the activation of any of the steps of the complement cascade, which allows for the direct killing of microbes, the disposal of immune complexes, and the regulation of other immune processes; the initial steps of complement activation involve one of three pathways, the classical pathway, the alternative pathway, and the lectin pathway, all of which lead to the terminal complement pathway.
GO:0002252
immune effector process
is_a
GO:0002253
activation of immune response
is_a
GO:0006959
humoral immune response
is_a
complement activity
related
complement cascade
exact
complement response
exact