Each Subset of Effector T Cells Produces a Distinct Array

question 13

Multiple Choice

Each subset of effector T cells produces a distinct array of secreted factors known as cytokines. One common feature of nearly all effector T cell responses is the rapid production of increased numbers of macrophages, granulocytes, and dendritic cells from the bone marrow. This response occurs due to:

• A) Effector T cell trafficking to the bone marrow to activate hematopoietic progenitor cells
• B) Depletion of peripheral myeloid cells after leaving the blood, leading to increased bone marrow production
• C) Inflammation-induced blood vessel dilation causing transient reductions in circulating myeloid cells
• D) Pathogen-induced migration of tissue-resident dendritic cells to lymph nodes inducing new dendritic cell production
• E) Effector T cell production of GM-CSF that traffics to the bone marrow

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