The Adaptive Immune System: T4-Lymphocytes

Learning Objectives for "The Adaptive Immune System: T4-Lymphocytes"

After completing this section you should be able to perform the following objectives.

1. Describe the overall function of T4-lymphocytes and their activation in terms of the following:

a. the role of their TCRs and CD4 molecules

b. what they recognize on antigen-presenting cells (APCs) such as dendritic cells, macrophages, and B-lymphocytes.

c. the role of antigen-presenting dendritic cells in the activation of naive T4-lymphocytes.

2. State the three overall roles of T4-lymphocytes in adaptive immunity.

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