PPT-IMMUNITY ACQUIRED IMMUNITY OR ADAPTIVE IMMUNITY

The resistance that an individual acquires during life by recognising and selectively eliminating specific foreign molecules is known as acquired immunity This is displays four characteristic features. . Ch.16. What is Immunity?. Immunity is resistance to infection after a foreign antigen has penetrated the first line of defense,. Immunity is achieved naturally, by having the disease or the artificial immunization. . Adaptive (specific) Immunity. The general idea:. body . can recognize . specific. . invader and act to destroy . that specific invader.. Adaptive . immunity develops during an individual. ’. s lifetime.. Present before exposure to pathogens. Present at birth. Non-antigen specific. Consists of:. Skin… barrier for microbes and viruses. Compromised by abrasion or laceration. Sebacious. sweat is acidic (pH 3-5)… prevents colonization of bacteria. Adaptive (specific) Immunity. The general idea:. body . can recognize . specific. . invader and act to destroy . that specific invader.. Adaptive . immunity develops during an individual. ’. s lifetime.. Cells of the Immune System. Physical & Chemical Barriers. Innate and Adaptive Immunity. Innate Defenses. Nonspecific physical and chemical barriers that contribute to resistance against infection. Learning objectives. By the end of this session student will be able to. . Define innate immunity, acquired immunity. . To understand cells involved in . innate . and acquired . immunity. IMMUNITY. Immune Responses. Applications of the Immune Response. A. Vaccination – the practice of deliberately stimulating the immune system in order to protect individuals against a disease. 1. Edward Jenner developed the first official smallpox . By . Dr. Sunita Mittal. Learning Objectives. To understand about acquired or adaptive immunity. Steps of humoral immune response. Steps of cellular immune response. Cytokines. Unwanted effects of immune system. Dr. . M.A.Thomas. . FUNCTIONS . OF THE IMMUNE SYSTEM. :. Recognize. , destroy and clear a diversity of pathogens. .. Initiate . tissue and wound healing processes. .. Recognize . and clear damaged self components. of certain substances in . the blood and lymph stream. . These . substances are known as antibodies. . This immunity is inborn. . . Antigens. , the foreign substances that attack the body, stimulate the production of antibodies. . Dr. S. Deborah. . Assistant Professor,. . Department of Biotechnology,. J. amal Mohamed College, . . Trichy-20. . Mobile: 9952270978. What is immunity . Immunity is the ability of the body to defend itself against disease-causing organisms. Everyday our body comes in contact with several pathogens, but only a few results into diseases. The reason is, our body has the ability to release antibodies against these pathogens and protects the body against diseases. This defense mechanism is called Immunity.. Features of adaptive immunity:. Adaptive immunity is characterized by the following:. 1. Antigenic specificity: (. highly specific).. 2. Diversity : . ( each antigen there is specific T-cell and B-cell for it).. Kavisha K Patidar . Assistant Professor. Department of . Microbiology. Deogiri College, Aurangabad. Department of Microbiology. Semester- iii. Unit -3. Title:- Immunity. Teacher – . Kavisha. K . Patidar. Its . how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful.. IMMUNE SYSTEM- . Its a network of tissues and organs containing cells that recognize foreign substances in the body and destroy .