PPT-Third Line of Defense Immune System Notes

LYMPHOCYTES Are the key cells of the immune system Two types B and T Both produced in the bone marrow B matures in the bone marrow T matures in the thymus Immunocompetency B and T lymphocytes must recognize self. 1) Lymphatic Vessels. . Reach every organ in the body. . . Pick up the tissue fluid (lymph) and transport it to the heart. Lymph Nodes. . Pea shaped tissue along the vessels that contain compartment sinuses that house lymphocytes and macrophages. 22. Physiological mechanisms of regulation of the immune system. Cytokines (classification according to the function).. 23. Defence against extracellular pathogens .. 24. Defence against intracellular .. My path to an exciting and rewarding Scientific Career. Cancer Institute NSW Career Development Fellow. Infectious Diseases and Immunology. Dr Scott Byrne. What is an Immunologist?. Our Immune System protects us from diseases. THE IMMUNE SYSTEM. NONSPECIFIC DEFENSES AGAINST INFECTION INCLUDE THE. SKIN. MUCOUS MEMBRANES. PHAGOCYTIC CELLS. ANTIMICROBIAL PROTEINS. THE IMMUNE SYSTEM. NONSPECIFIC DEFENSE MEANS THAT THEY DON’T DISTINGUISH BETWEEN MICROBES. What is the Immune System?. Our body’s natural defensive line to foreign material called microbes.. Without an immune system, microbes would quickly attack our bodies.. Our body has three levels of defense against foreign invaders. . Chaparral High School. What is immunology?. Very simply, it is the study of our body’s defense against infection and disease.. Even though we are constantly bombarded by microorganisms, we rarely become sick. Why?. Innate Immunity. Receptors on T and B Cells Are Specific for Each Antigen. Innate and Adaptive Immune Systems. Antigen Presentation. Adaptive Immunity. Function of the Immune System. Tumor Escape Mechanisms. Main Function. The Immune System is used to prevent infection and . disease.. Using . a variety of cells and organs, the Immune System disposes of foreign or harmful antibodies through a process known as the immune response.. The specialists who diagnose and treat immune system disorders are called . immunologists. , and the specialty itself is called . immunology. .. Phagocytes. Phagocytes are often the first immune system cells . 1) Lymphatic Vessels. . Reach every organ in the body. . . Pick up the tissue fluid (lymph) and transport it to the heart. Lymph Nodes. . Pea shaped tissue along the vessels that contain compartment sinuses that house lymphocytes and macrophages. HIV. (Human immunodeficiency virus)- a virus that attacks the immune system.. Infection with HIV can be prevented. Responsible decisions is the most valuable tool for protection against HIV.. Example: Abstinence from sexual activity and injecting drugs reduce your risk.. Immunity. Immunity. The ability of the body to fight infection and/or foreign invaders by producing . antibodies or killing infected cells.. Immune System. The system in the body responsible for maintaining homeostasis by recognizing . What is the Immune System?. The immune system is a vast network of cells and tissues.. Located throughout your body.. Involves numerous types of cells, organs, proteins, and tissues.. The immune system can distinguish between your tissues and foreign tissue/ invaders.. Adaptive . Non-adaptive (. cell injury-----cell death). hypertrophy. Dysplasia. hyperplasia. neoplasia. Atrophy. Degeneration. Metaplasia. Necrosis, apoptosis. & gangrene. Reversible. Reversible* / Irreversible.