Back المسار المكمل البديل في الجهاز المناعي Arabic Εναλλακτική οδός του συμπληρώματος Greek Via alternativa do sistema complemento Portuguese Альтернативный путь активации системы комплемента Russian
The alternative pathway is a type of cascade reaction of the complement system and is a component of the innate immune system, a natural defense against infections.
The alternative pathway is one of three complement pathways that opsonize and kill pathogens. The pathway is triggered when the C3b protein directly binds a microbe. It can also be triggered by foreign materials and damaged tissues.