what are the three components of the immune system?

what do macrophages do?

what do dendritic cells do?

what do natural killer cells do?

advantages of innate immune response

what are complement cascade made by?

what is the most abundant component of the complement cascade?

what two fragments do C3 split into?

what is C3a?

what is C3b?

what is the function C3b?

why do C3b bind to bacteria?

what are the three different pathways of the complement cascade?

advantages of the Classical pathway?

advantages of Alternative pathways?

advantage of Mannose-binding lectin pathways?