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The Lymphatic System

The Lymphatic System. Roles of the Lymphatic System. One-way drainage system . 2) Lipid Absorption from Small Intestine. 3) Produce & circulates Immune cells. Valves in lymphatic vessels prevent backflow of lymph. Right Lymphatic and Thoracic duct. Lymphoid Tissues:

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The Lymphatic System

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  1. The Lymphatic System

  2. Roles of the Lymphatic System • One-way drainage system 2) Lipid Absorption from Small Intestine 3) Produce & circulates Immune cells.

  3. Valves in lymphatic vessels prevent backflow of lymph.

  4. Right Lymphatic and Thoracic duct

  5. Lymphoid Tissues: Un-encapsulated lymphatic tissues • Tonsils • Pharyngeal • 2) Palantine • 3) Lingual Tonsil located in strategic locations

  6. Lymphoid Tissues

  7. Lymphoid Organs: Surrounded by fibrous capsule (encapsulated) Lymph Nodes Thymus Spleen

  8. Lymph Node

  9. Structure of a Lymph Node

  10. Derivation and Distribution of Lymphocytes

  11. Lymph Node Histology

  12. Lymph Node Histology2

  13. The Thymus

  14. The Thymus • Behind the sternum (in anterior mediastinum) • Where T cells Differentiate • Involution (gets smaller) post puberty

  15. The Spleen

  16. The Spleen • Largest mass of lymphoid tissue in body • Same functions for whole blood as lymph nodes for lymph

  17. The Spleen - histology

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