Lymphatic Cells & Lymphatic Tissue

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Lymphatic (Lymphoid) Tissue = Not An Organ! • Aggregations of lymphocytes in the connective tissues of mucous membranes and various organs – Not surrounded by connective tissue – Simplest form called diffused lymphatic tissue • simplest form, diffused lymphatic cells • lymphocytes are scattered, rather than densely clustered • prevalent in body passages open to the exterior – respiratory, digestive, urinary, and reproductive tracts • mucosa-associated lymphatic tissue (MALT) – Lymphatic nodules (follicles) • dense masses of lymphatic cells • lymphocytes and macrophages that congregate in response to pathogens • constant feature of the lymph nodes, tonsils, and appendix • Peyer patches – dense clusters in the ileum, the distal portion of the small intestine
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Page 7 and 8: Lymphatic Organs These are location

Lymphatic Cells & Lymphatic Tissue

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