Periarteriolar lymphoid sheaths

From Wikipedia, the free encyclopedia

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.

(This is in contrast to the lymphoid portions of the white pulp, where B cells predominate.)

 This anatomy article is a stub. You can help Wikipedia by expanding it.
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Lymphatic system

Bone marrow | Thymus (Hassall's corpuscles) | Spleen (White pulp, Periarteriolar lymphoid sheaths, Marginal zone, Red pulp) | Tonsils/Waldeyer's tonsillar ring (Palatine, Lingual, Adenoid)

Mucosa-associated lymphoid tissue: Gut-associated lymphoid tissue | Peyer's patches

Lymph nodes: Subcapsular sinus | Paracortex | Lymph vessels

Lymph | Lymphocytes | High endothelial venules | Immune system

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