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        | When stimulating a naive T cell for T cell activation, MHC interacts with: |  | Definition 
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        | When stimulating a naive T cell for T cell activation, B7 interacts with: |  | Definition 
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        | Holds APC and T cell together |  | Definition 
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        | Proliferating T cell makes: |  | Definition 
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        | Expresses only a moderate-affinity IL-2 receptor |  | Definition 
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        | Expresses a high affinity IL-2 receptor and secretes IL-2 |  | Definition 
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        | Binding of IL-2 to its receptor signals the T cell to enter the cell cycle --> IL-2 induces: |  | Definition 
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        | TH cells releases cytokines that: |  | Definition 
 
        | help B cells make antibodies, help cytotoxic T cell activation, and promote activation of macrophages |  | 
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        | another ligand for B7 that delivers inhibitory signals to activated T cells |  | Definition 
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