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Lymphatic Systems

Lymphatic Systems. The Thymus. Low mag of the thymus. Cortex (C) Medulla (M). M. C. M. C. High mag of the medulla of the thymus. Dark nuclei = T-cells Larger nuclei = endothelial reticular cells Arrow = Hassell’s Corpuscle. Lymphatic Systems. Lymph Nodes. Diagram of a lymph node.

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Lymphatic Systems

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  1. Lymphatic Systems The Thymus

  2. Low mag of the thymus Cortex (C) Medulla (M) M C M C

  3. High mag of the medulla of the thymus Dark nuclei = T-cells Larger nuclei = endothelial reticular cells Arrow = Hassell’s Corpuscle

  4. Lymphatic Systems Lymph Nodes

  5. Diagram of a lymph node

  6. Low mag of a lymph node Cx = cortex w/ lymphatic nodules (F); M = medulla; C = CT capsule

  7. A lymphatic nodule with germinal center (GC)

  8. Lymphatic Systems Non-encapsulated Lymphatic Nodules

  9. Peyers Patches = lymphatic nodules in the ileum

  10. Low mag of a palatine or lingual tonsil

  11. Palatine Tonsil w/ SS non-K (arrow) Pharyngeal Tonsil w/ Resp epith (arrow = nodule)

  12. Lymphatic Systems The Spleen

  13. Diagram of the Spleen

  14. Low magnification of the Spleen CT Trabeculae White pulp (lymphatic nodules) Thick CT capsule CT Trabeculae Red Pulp

  15. White pulp Red Pulp Lymphatic nodules CT Trabeculae

  16. Circulatory System in the Spleen

  17. Red Pulp White Pulp White Pulp Red Pulp

  18. High mag of the splenic red pulp

  19. SEM of the endothelial cells of the sinusoids

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