PPT-Discussion Outline Cells of the Immune System

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. Lori Herrington. 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?. 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. . Oral immunity and . immunopathological. processes in the mouth.  Immunity. Microorganisms are in the air we breathe and in/on the food we eat;. Thus our epithelial surfaces are continuously exposed to microorganisms;. Non-specific Immunity. Born with some immunity . Helps prevent disease. Helps slow disease progression. First line of defense. Non-specific, cont. .. Physical Barrier- . unbroken skin . Non-specific Immunity. Born with some immunity . Helps prevent disease. Helps slow disease progression. First line of defense. Non-specific, cont. .. Physical Barrier- . unbroken skin . 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).. Veterinary assisting program. Responsibilities . The immune system is responsible for protecting the animal from potentially harmful organisms attempting to invade.. It is a VERY complicated system. It must be able to recognize substances that are foreign to the body by recognizing what is naturally . 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. 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 . 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.. Purpose of the Immune System . Protect from internal attacks from . abnormal body cells . (cancerous cells). Protect from . external pathogens. Can enter the body through any systems that have openings on the exterior of the body. Bagaimana. . Sistem. . Imun. . Bekerja. Peran. . sistem. . imun. . adalah. . melindungi. . tubuh. . dari. . mikroorganisme. lain . seperti. virus, . bakteri. , . jamur. , . dan. . parasit. 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..