Memory T cells are like memory B cells. They essentially help us with reinfection. They keep a copy of our antibody while suppressor T cells help us regulate the different types of white blood cells in our body and they use a negative feedback mechanism to tone down or turn down our immune response. So we see that the innate immune system does in fact interact with adaptive immune system even though this is the first one to actually react to our infection. We have special cells like our derivinic cells and macrophages that basically are antigen presenting cells. They present antigens on the surface of their membrane and they move to our adaptive system, to our lymph nodes and they basically cause the differentiation of B lymphocytes and T lymphocytes.