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MICROBIOLOGY – ALCAMO

MICROBIOLOGY – ALCAMO. LECTURE: Immune System, Lymph Node Introduction. The Lymphatic System. The _______________________ defends the body from foreign invasion by disease causing agents such as viruses, bacteria, or fungi. The Lymphatic System.

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MICROBIOLOGY – ALCAMO

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  1. MICROBIOLOGY – ALCAMO LECTURE: Immune System, Lymph Node Introduction

  2. The Lymphatic System • The _______________________ defends the body from foreign invasion by disease causing agents such as viruses, bacteria, or fungi.

  3. The Lymphatic System • Part of the immune system made of a network of __________________that carry a clear fluid called _________ in one direction - _____________________ • Also includes structures dedicated to the circulation and production of lymphocytes (_________, _________, _____________, __________________, _________, etc)

  4. The Lymphatic System • Blood does not directly come in _________ with the cells and tissues in the body • Parts of the blood first exit the blood vessels to become _________________, which comes into contact with the cells of the body. • _________ is formed when interstitial fluid enters the initial _______________

  5. The Lymphatic System • _________ and _________ interstitial fluid, including plasma protein to the blood, and thus helps maintain fluid balance  • _________ the body against disease by producing lymphocytes • _________ lipids from the intestine and transport them to the blood

  6. Lymph Node • __________________________________distributed widely throughout the body including the armpit and stomach/gut and linked by lymphatic vessels • __________________ are found all through the body, and act as _________ or traps for foreign particles • They are important in the proper functioning of the __________________

  7. Lymph Node Structure • Pericapsular Connective Tissue and Fat Tissue which clings to outside of node, holds node _________, _________it, ready supply of _________ for energy B. Capsule • Dense outer covering which ________________ • ________________ – inner branches of capsule

  8. C. The Substance of the lymph node is divided into: • __________________ • __________________ • D. Germinal Centers • Dense, darkly stained round areas just inside the capsule where certain ___________________________

  9. Vessels • Multiple _________ lymph vessels bring _________ into the _________________ • The _________ gets slowly _________ through the substance of the lymph node where it encounters ___________ • The _________ lymph vessel carries the lymph ____________________________

  10. Vessels • Artery • __________________________________from heart to node • Has a _______________ and quite small inside diameter • May contain visible _________________

  11. Vessels • Vein • Carries __________________from node to heart • Has a __________________and larger inside diameter than the artery • May contain visible blood cells

  12. Vessels • Lymph • Has almost _________ _________ • Has a very large inside _________ • Never contains _________ blood cells

  13. Maintain the pressure and volume of extracellular fluid by returning excess water and dissolved substances from the interstitial fluid to the circulation

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