Periarteriolar lymphoid sheaths (or periarterial lymphatic sheaths, or PALS) are a portion of the white pulp of the spleen. They are populated largely by T cells and surround central arteries within the spleen; the PALS T-cells are presented with blood borne antigens via myeloid dendritic cells.
In contrast, the lymphoid portions of the white pulp are dominated by B cells.
External linksedit
Histology image: 07703loa – Histology Learning System at Boston University
Histology image: 62_06 at the University of Oklahoma Health Sciences Center
This article related to the lymphatic system is a stub. You can help Wikipedia by expanding it.
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