PPT-6: Immunity

Lesson Objectives Describe the different forms of immunity in the body AO1 D Describe what is meant by phagocytosis and how it acts as a defence mechanism AO2 C Explain the role of . In short, it is safe to state that immunity refers to the rules and principles that govern diplomatic relations between states and other entities with legal personality within the international system.. Tony Serino, . Ph.D. .. Immunity: Topic Objectives. Be able to describe the multilevel defenses of the body.. Be able to describe the symptoms and triggers for inflammation.. Be able to define adaptive immunity, antibodies, antigens and .  . Immunity . is defined as the capacity of the body to resist the pathogenic agents. It is the ability of the body to resist the entry of . different types of . foreign bodies like bacteria, . virus, . 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 . The immune systems consists of organs, cells, and molecules that fight infections. Many other tissues and systems help the immune system. Skin. is a physical barrier to infection. Mucous membranes. trap pathogens entering the body. The term Immunity has traditionally referred to the resistance exhibited by the host towards injury caused by microorganism and their product.. However, protection against infectious disease is only one of many consequences of immune response, which in its entirety is concerned with the reaction of the body against any foreign antigen.. Dr. . Bipin. Patel. introduction. INTRODUCTION. The term “immunity” is referred to the . resistance of an individual . towards . injury. caused by . microbial stimuli . (microorganisms & their products) & . Learning Objectives. Introduction to Immunity. Innate Immunity. Lymphoid Tissue. Introduction to Immunity. Immunitas. : Freedom from. Immunity is the ability of body to destroy potentially hazardous/harmful foreign substances, if entered in body, that is it provides FREEDOM from any foreign invader.. 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. . 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:. 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 .