T Cells Travel from the Bone Marrow to the Thymus

question 3

Multiple Choice

T cells travel from the bone marrow to the thymus for maturation.What is the correct order of the maturation sequence for T cells in the thymus?

• A) bone marrow to the cortex; after thymic education,released back to peripheral circulation
• B) storage in either the cortex or medulla; release of T cells into the peripheral circulation
• C) maturation and selection occur in the cortex,then the medulla; release of mature T cells to secondary lymphoid organs
• D) activation and selection occur in the medulla; mature T cells stored in the cortex until activated by antigen

Understand why the infant mortality rate is used as an international comparison of a country's health status.

Promote safety and health in the selection of toys for children.

Understand the variability and requirements of newborn screening tests across the United States.

Recognize the importance of employers caring about the health needs of local children for future workforce development and productivity.

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