Which specific area of the lymph node is the researcher likely observing: region densely packed with B lymphocytes?
Understand the Problem
The question asks about identifying a specific region within a lymph node based on its histological characteristics, in this case, a region densely packed with B lymphocytes. This requires knowledge of lymph node anatomy and the distribution of different cell types within it.
Answer
The cortex, specifically the B cell follicles.
The researcher is likely observing the cortex of the lymph node, specifically the B cell follicles which are densely packed with B lymphocytes.
Answer for screen readers
The researcher is likely observing the cortex of the lymph node, specifically the B cell follicles which are densely packed with B lymphocytes.
More Information
The cortex is the outermost layer of the lymph node and contains follicles, which are clusters of B cells and follicular dendritic cells. These follicles are the primary sites of B cell activation and proliferation in response to antigens.
Sources
- A Distinct Subset of Fibroblastic Stromal Cells Constitutes the Cortex ... - pmc.ncbi.nlm.nih.gov
- New tools for immunologists: models of lymph node function from ... - frontiersin.org
- B cell follicles and antigen encounters of the third kind - Nature - nature.com
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