ch22 - Chapter 22 THE LYMPHATIC and IMMUNE SYSTEM and...

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Chapter 22 THE LYMPHATIC and IMMUNE SYSTEM and RESISTANCE to DISEASE Chapter Synopsis The lymphatic system is composed of lymph, lymphatic vessels, a series of small masses of lymphoid tissue called lymph nodes, and three organs: the tonsils, spleen, and thymus gland. Attention is given to the histology of lymph vessels, lymph nodes, the plan of lymph circulation, and the structure and physiology of lymphatic organs. Other principal areas of study include the developmental anatomy of the lymphatic system, various strategies of nonspecific resistance to disease, the role of lymphatic tissue in the formation of B cells and T cells, antigens, cytokines, antibodies, cell-mediated and antibody-mediated immunity, self-recognition, and immunology and cancer. Discussions of the effects of stress and aging on the immune system are followed by Focus on Homeostasis: The Lymphatic and Immune System. Disorders of the immune system that are covered include a section on acquired immune deficiency syndrome (AIDS), allergic reactions, infectious mononucleosis, autoimmune diseases, systemic lupus erythenatisus, and lymphomas. Clinical applications include metastasis through the lymphatic system, abscess and ulcers, histocompatibility testing, graft rejection, monoclonal antibodies, cancer immunotherapy, edema and lymph flow, ruptured spleen, and microbe evasion of phagocytosis. The chapter ends with a glossary of medical terminology associated with the lymphatic system and immunity.
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Chapter Outline and Objectives INTRODUCTION 1. Explain the importance of resistance to disease with emphasis on nonspecific resistance and immunity actions in protection against pathogens. THE LYMPHATIC SYSTEM STRUCTURE AND FUNCTION 2. Describe the general importance of lymph. Functions of the Lymphatic System 3. List the functions of the lymphatic system. Lymphatic Vessels and Lymph Circulation 4. Describe the organization of lymph vessels. Lymphatic Capillaries 5. Describe the general cellular structure, distribution, and operation of lymphatic capillaries, then note the special location and duty of lacteals. Lymph Trunks and Ducts 6. Describe the anatomic relationship of lymph nodes to the principal lymphatic trunks. Formation and Flow of Lymph 7. Give the reasons for accumulation and then clearance of proteins and fluids from the interstitial space, and indicate the route through which the lymph flows due to the peculiar lymphatic architecture and sources
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of pressure. 8.
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This note was uploaded on 06/06/2011 for the course BIO 115 taught by Professor Chen during the Fall '09 term at Moraine Valley Community College.

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ch22 - Chapter 22 THE LYMPHATIC and IMMUNE SYSTEM and...

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