PPT-SPECIFIC IMMUNE RESPONSE

By Dr Suzan Y SPECIFIC COMPONENTS OF IMMUNE SYSTEM LYMPHOCYTES BLymphocytes B cells T Lymphocytes T cells Natural Killer Cells NK cells Memory Cells Suppressor Cells They have different functions in specific immunity. 1. 34. Copyright © McGraw-Hill Global Education Holdings, LLC. Permission required for reproduction or display.. Overview of Specific . (Adaptive) Immunity. Three major functions. recognize . nonself. Super Awesome Powers of Cell Signaling!. Reminder - Do the Questions!. Do the questions, or Mrs. Davis will be so super sad. Plus, this stuff is AWESOME.. Immunologists. 10-11 years of schooling/training. 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 . Immunology. - the study of host defense mechanisms. Immunity. -. ability of the host to protect itself against foreign organisms. Resistance to disease.. Antigen (Ag)- . is a foreign substance that can elicit specific immune response (IR) when is immunogenic. Pathogen. Complement fixation. Pyrogens. Chemotaxis. Immunocompetant. Autograft. Isograft. Allograft. Xenograft. Hapten. Allergy/. hypersensitiviy. Immediate/acute hypersensitivity. Anaphylactic shock. The relationship between viruses and the immune system is much more intimate than it is for most bacteria: viruses often modify the cells within which they replicate, thereby rendering them ‘foreign’ and susceptible to attack by sensitized lymphocytes; furthermore, . The Immune System. The immune system is a group of cells & soluble molecules, which interact & distinguish patterns in the body as “self” or “non-self,” in order to eliminate those that are “non-self.”. CfE. . Advanced Higher Biology. Unit . 2: . Organisms and Evolution. If you have done Higher Human Biology this is just revision!!! Use the key areas to create revision notes!. HOMEWORK: ACTIVITY G – Self Study Task – Immune response to parasites. A. Anatomical barriers to infections. 1.Mechanical Factors. Skin. : physical barrier and impermeable to most infectious agents. The desquamation of skin epithelium also helps remove bacteria and other infectious agents that have adhered to the epithelial surfaces. . infections. Lec. . 3. The relationship between viruses and the immune system is much more intimate than it is for most bacteria: viruses often modify the cells within which they replicate, thereby rendering them ‘foreign’ and susceptible to attack by sensitized lymphocytes; furthermore, . B. Antigen (Ag). A substance that reacts with the products of a specific immune response.. C. Hapten. A substance that is non-immunogenic but which can react with the products of a specific immune response.. Adaptive . Non-adaptive (. cell injury-----cell death). hypertrophy. Dysplasia. hyperplasia. neoplasia. Atrophy. Degeneration. Metaplasia. Necrosis, apoptosis. & gangrene. Reversible. Reversible* / Irreversible. Dr. Ahmed Ali Mohammed. Immunology. : . is the science that studying our protection from foreign macromolecules or invading organisms and our responses to them. These invaders include viruses, bacteria, protozoa or even larger parasites..