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Questions and Answers
What is the primary origin of plasma cells?
What is the primary origin of plasma cells?
- Bone marrow
- Lymph nodes (correct)
- Thymus
- Spleen
Where do plasma cells primarily home shortly after their formation?
Where do plasma cells primarily home shortly after their formation?
- Thymus
- Spleen
- Bone marrow (correct)
- Lymph nodes
What percentage of all nucleated marrow cells do plasma cells comprise?
What percentage of all nucleated marrow cells do plasma cells comprise?
- 3%
- 2%
- 1%
- 4% (correct)
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Study Notes
Plasma Cell Origin and Distribution
- Primary origin of plasma cells is from B cells in the lymphoid organs, particularly in the germinal centers of secondary lymphoid organs.
- Shortly after their formation, plasma cells primarily home to the bone marrow, where they mature and produce large amounts of antibodies.
- Plasma cells comprise approximately 5% of all nucleated marrow cells in a healthy adult.
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