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Human Anatomy

Human Anatomy. The Lymphatic System. Function(s). Production, maintenance and distribution of lymphocytes Maintain normal blood volume. 1. Lymphocytes. White blood cell Confer immunity against: Bacteria and viruses Cancer cells Foreign proteins i.e., toxins.

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Human Anatomy

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  1. Human Anatomy The Lymphatic System

  2. Function(s) • Production, maintenanceanddistribution of lymphocytes • Maintainnormal blood volume

  3. 1. Lymphocytes • White blood cell • Confer immunity against: • Bacteria and viruses • Cancer cells • Foreign proteins i.e., toxins

  4. 2. Maintain Blood Volume Interstitial fluid Lymph

  5. Components • Lymph ducts • Lymph nodes – comprised of lymphocytes • Lymph nodes will become enlarged when reacting in an immune response • Infection • Allergenic reaction

  6. Lymphatic System

  7. Lymph Returned to Blood • Lymph is drained into venous system at junction of internal jugular and subclavian on R&L sides

  8. Thoracic Duct Thoracic duct is the largest lymph duct in the body. It drains into junction of Left internal jugular and left subclavian veins.

  9. Whole Body Lymph Drainage Pattern

  10. Breast Cancer • Primary cause of death in women between 35 – 45 yo. • Risk factors • Family history • Pregnancy after 30 yo. • Early menarche (1st menstrual period) • Late menopause (last menstrual period)

  11. Lymph Node Analysis • Lymph drains first to the axillary nodes • If cancer cells are not detected in axillary nodes (spread), 5-year survival is 82%. • If 4 or more axillary lymph nodes contain cancer cells, survival rate drops to 21% • Successful treatment begins in early detection when the tumor is very small.

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