Second-line cellular defenses of innate immunity include action by the following cell types: _________. (Select all that apply)

Question

Quizplus · Accepted Answer

Neutrophils and natural killer cells are part of the innate immune system's second line of defense. Neutrophils are a type of white blood cell that engulfs and destroys pathogens. Natural killer cells are involved in the destruction of infected or cancerous cells without the need for prior sensitization to the antigen. B cells and T cells are part of the adaptive immune system, not the innate immune system.

Second-Line Cellular Defenses of Innate Immunity Include Action by the Following