Editor-In-Chief: C. Michael Gibson, M.S., M.D. 
High endothelial venules, or HEVs, are a subtype of blood endothelium present within lymph nodes; used by various leukocytes to gain entry into the lymph node via the blood.
The HEVs are made up of cuboidal endothelial cells, with various receptors to allow entry/rolling interactions between leukocytes and the endothelium.
High endothelial venules are found in lymph nodes and tonsils and Peyer's patches, but not in the thymus or spleen.
de:High endothelial venule
Red pulp (Cords of Billroth, Marginal zone)
White pulp (Periarteriolar lymphoid sheaths, Germinal center)
T cells: High endothelial venules
B cells: Primary follicle/Germinal center - Mantle zone - Marginal zone
Lymph node capsule - Subcapsular sinus - Cortex - Paracortex - Medulla (Medullary cord) - Hilus
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