Which of the following cell types are responsible for initiating a secondary immune response?
A)memory cells
B)macrophages
C)stem cells
D)B cells
E)T cells

Question

Quizplus · Accepted Answer

Memory cells are responsible for initiating a secondary immune response because they "remember" the pathogen from the initial infection and are able to mount a faster and stronger response upon re-exposure. Macrophages, stem cells, B cells, and T cells can all play important roles in the immune response but are not specifically responsible for initiating a secondary response.

Which of the Following Cell Types Are Responsible for Initiating