PPT-Blood and the Immune System

The Bodys Lines of Defence First Line of Defence Skin the largest organ and mucous membranes defend against viral and bacterial invaders The skin acts as a physical barrier as wells as a chemical barrier acidic secretions which inhibits the growth of microbes. Blood. hem. /o and. . hemat. /o. plasma - 55%. formed elements - 45%. serum - plasma without clotting proteins. Blood Cells. RBC - erythrocytes - . erythropoiesis. WBC - leukocytes - . leukopoiesis. Solutions to improve treatment. Current . immunosuppressors. …. …suppress the entire immune system, leaving patients more vulnerable to everyday infections and higher rates of cancer.. However, this is necessary because the immune system attacks parts of the body which are work well and are needed (in MS, myelin is targeted, causing demyelination) but we cannot isolate the suppression to just one impact of the immune system so to protect the targeted area we must lower the guard of everywhere else. . Chapter 31 Sections 1-4, 6. Pathogens and Human Illness. What are some causes of diseases?. We can have infectious and noninfectious diseases.. Infectious can be passed from one person to another because of germs. What are some examples?. Essential Knowledge. 2.d.2 - Homeostatic mechanisms reflect both common ancestry and divergence due to adaptation to different environments (43.3).. 2.d.3 – Biological systems are affected by disruptions to their dynamic homeostasis (43.2-43.4).. 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.”. 2018 Anatomy & Physiology (B & C) Karen Lancour Patty Palmietto National Bio Rules National Event Committee Chairman Supervisor – A&P Key attributes of immune system. 4 attributes that characterize the immune system as a whole. specificity. antigen-antibody specificity. diversity. react to millions of antigens. memory. rapid 2° response. By Renira Rugnath and Jeshanah Johnson . Basics . Homeostasis, or a "steady state," is a continual balancing act of the body systems to provide an internal environment that is comparable with life. The two liquid tissues of the body, the blood and lymph have separate but interrelated functions in maintaining this balance. They combine with a third system, the immune, to protect the body against pathogens that could threaten the organism's viability. . 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 . 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 . Immunology. Study of the components and function of the immune system. Immune System . Molecules, cells, tissues and organs which provide non-specific and specific protection against. Microorganisms. innate immunity. Prof dr. . Ihsan. . Edan. . Alsaimary. department of microbiology – college of medicine – university of . basrah. Mobile : 07801410838 - . e.mail. : ihsanalsaimary@gmail.com. -. Humaidan. M.D. Ph.D. . Lecture 2. The immune system includes the role of . physical. , . cellular. , and . chemical systems . that are in place and that respond to all aspects of . foreignness. . .