Lymph Nodes Function as Meeting Points Between Antigen-Bearing Dendritic Cells

question 34

Multiple Choice

Lymph nodes function as meeting points between antigen-bearing dendritic cells arriving from the tissue and recirculating B and T lymphocytes. Whereas the dendritic cells coming from the tissue enter the lymph node via the afferent lymphatic vessels, the recirculating lymphocytes enter the lymph node:

• A) Also from the lymph fluid draining the tissue
• B) Directly from their primary lymphoid organ where they develop
• C) From the blood by crossing the high endothelial venules
• D) By being trapped in the lymphoid follicle by resident macrophages
• E) By being carried there by dendritic cells

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