PPT-ANA410 ( 2) Innate Immunity

Dr MAThomas 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. Chapter 16: Innate (nonspecific) Immunity. Some terms:. Susceptibility. : Lack of immunity to a disease.. Immunity. : Ability to ward off disease.. . . immunity. : Defenses against any pathogen.. Chapter 22. Functions of the Immune System. Destroy pathogens (organisms that cause disease). Detect and kill abnormal cells such as cancerous cells. Remove dead cells and debris from the body. Pathogens. 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. All organisms have innate behaviors that are inherited from parents that develop independently from the environment. Innate behavior is inherited from an individual’s parents and is not modified by the individual and is generally not affected by the organism’s environment, including an organism’s experiences.. Chapter 16: Innate (nonspecific) Immunity. Some terms:. Susceptibility. : Lack of immunity to a disease.. Immunity. : Ability to ward off disease.. . . immunity. : Defenses against any pathogen.. 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.. 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. disease. Disease-any condition that impairs the normal functioning of the body. Violation of homeostasis. Homeostasis-ability of the body to keep proper internal conditions no matter what is happening outside of it. What is it?. Innate Behavior. “Automatic” behavior. AKA instinct. Strong genetic component. Learned Behavior. What is it?. Learned Behavior. Behavior that is the result of experience or observation. 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. 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.. 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).. 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 .