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Chapter 22

Chapter 22. The Lymph System. Lymphatic System. Lymphatic words. Lymphangiogram Lacteals Chyle Thoracic duct Right lymphatic duct Cisterna chyle Nodes. Lymphatic organs. Nodes Spleen Thymus Tonsils Peyer’s patches Mucosa associated lymphatic tissue. Structure of spleen.

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Chapter 22

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  1. Chapter 22 The Lymph System

  2. Lymphatic System

  3. Lymphatic words • Lymphangiogram • Lacteals • Chyle • Thoracic duct • Right lymphatic duct • Cisterna chyle • Nodes

  4. Lymphatic organs • Nodes • Spleen • Thymus • Tonsils • Peyer’s patches • Mucosa associated lymphatic tissue

  5. Structure of spleen

  6. Development of lymph

  7. Invaders • Bacteria • Viruses • Fungi • Foreign objects • Cancer cells

  8. Non-Specific Resistance • Skin and mucous membranes • Tears, sweat, oil, urine, vomiting, saliva, etc. • Sebum, lysozymes, gastric acid. • Interferon • Complement • Transferrins • N-K cells and Phagocytes • Inflammation • Fever

  9. Edward Jenner Created the first Immunization The disease: smallpox

  10. Specific Resistance • Cellular immunity via T-Cells. Attack fungi, parasites, viruses, cancer cells and foreign tissue • Humoral defense with B-cells. B-cells become plasma cells, leave the nodes and produce antibodies (Ig’s). Attack bacteria and viruses. • Both systems have memory cells

  11. AIDS / HIV • Origin of infection in the U.S. • Method of viral attack • Retroviruses • Delayed symptoms • Where did the virus come from? • Who is at risk? • Treatment / cure??? • Are there other viruses?

  12. Words to Learn • Eczema • Immunization • Septic shock • Systemic lupus • Hypersensitivity • Anaphylactic reaction • Autoimmune disease

  13. More Words • Lymphoma and Hodgkins • Allograft • Autograft • Gamma globulin • Lymphadenopathy • Splenomegaly • Xenograft

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