T cells and immunity

After T cells leave the thymus, where do they go?

when do T cells first encounter MHC complexes?

which MHC do CD8+ screen for?

which MHC do CD4 screen for?

what is meant by the immunological synapse?

what do naive T cells require before the TCR can engage?

how is costimulation achieved?

what is the role of of CD8+?

what are the 2 roles of CD4?

explain how CD8+ with MHC I destroys viruses

how do CD4 and TH1 digest bacteria?

how does Th2 induce AB formation?

what is the role of TH17?

what is the role of regulatory T-cells?

what is the role of natural T-reg's?