Immunity Objectives 1) Describe the cell functions of the Immune System: Lymphocytes- small white blood cells that are responsible for much of the work of the immune system. Three types: Natural Killer Cells-NK cells provide rapid responses to virally infected cells and respond to tumor formation. NK cells are unique bc they have the ability to recognize stressed cells in the absence of antibodies and MHC‚ allowing for a much faster immune reaction. Trigger phagocytes to the site. Doesn’t recognize
Premium Immune system
The Immune System: Immune System Overview 1. Name the two major functions of the immune system: • __ To destroy disease-causing organisms_____________ • _______ To detect and kill abnormal cells such as cancerous cells________________ 2. Pathogens are classified according to their size and where they are located in the body. List the five types of pathogens from largest to smallest: • _____ Parasitic worms_____ • ________Fungi________________ • _____Protozoa_____________________ • ____Bacteria______________________
Premium Immune system
Question to answer after watching the Interactive Physiology - The Immune System: Innate Host Defenses 1. Name the two major categories of innate (nonspecific) defenses: • Surface Barriers • Innate Internal Defenses 2. Surface barriers include the Intact skin and mucous membranes of the respiratory‚ gastrointestinal and genitourinary tracts. 3. List the three properties of skin that help it resist invasion: • Keratin: tough protein in skin cells‚ forms an abrasion- and water-resistant outermost
Premium Immune system
GERMS For as long as humans have been on this planet‚ the microscopic life forms that we call germs‚ or pathogens‚ have been here too. For all this time they have been multiplying in the soil‚ in the water‚ and in our bodies. They are in the mouth‚ on the skin‚ and even in important organs. But that is not always a bad thing‚ because humans could not live without germs. Some germs‚ or "microbes" help digest food‚ while others produce vitamins. Most of the time‚ people and germs coexist peacefully;
Premium Immune system
blood cells are defensive cells and substances‚ these things produce an immune response. If such an encounter such as‚ bacteria‚ viruses‚ fungi and parasites occur can make the macrophages engulf the microorganism and secretes cytokines and chemokines. This attracts immune cells to the infected area which are neutrophils and monocytes. These come from nearby blood vessels and this causes the process of inflammation. The system of defensive proteins is also activated. Protein coats the target cells
Premium Immune system
T i 1. Immune Responses 1 Immune Responses 2. Classes of Immunosuppressive Drugs Bertram G Katzung‚ 11th Edition. Chapter 55‚ pp 963-986. Immunosuppressive Immunosuppressive Drugs drugs g 1. IMMUNE RESPONSES A. Normal Immune Responses Protect host from infections‚ pathogens‚ and to eliminate disease. Protection from infection and disease is provided by the collaborative efforts of the innate and adaptive disease is provided by the collaborative efforts of the innate and adaptive Immunity
Premium Immune system Immunology
therapy if needed. Clinicians play an important role in explaining to patients the novel risk assessment and the treatment strategies and ongoing clinical trials they will go through (Heeger P.S. and Dinavahi MD.R‚ 2012). Human immune system is divided into innate and adaptive. Innate immunity is rapid but with no memory and little specificity. Innate immunity surrounds cellular components (eg. dentritic cells- DCs and natural killer cells -NKCs) and molecular components (eg. toll-like receptors- TLRs)
Premium Immune system
sessions. With this practice I wish to achieve a meaningful way to apply the lessons in my work area. While reading the interview of Tim Sullivan‚ I came to realize that there is a strong connection with my personal limitations w.r.t complex adaptive systems. To the response about barrier in effectively dealing with complexity‚ Tim has discussed that we humans have innate tendency of attaching cause to effect‚ which precludes understanding complex situations. I find that I am overly inclined towards
Premium Idea Complexity Thought
known as NK cells‚ are primarily a supportive type of cell which aids in protecting you from distinct infections and even cancer‚ as these cells target tumor cells.1 The natural killer cell plays a severe role in administering the innate and adaptive immune response to pathogens‚ injury‚ and stress. Natural killer cells acquired their name from the fact that they are propagated naturally by the body and their sole purpose is to search for and suppress destructive cells. When a destructive cell is
Premium Immune system
Humoral immunity (also called the antibody-mediated system) is the aspect of immunity that is mediated by macromolecules (as opposed to cell-mediated immunity) found in extracellular fluids such as secreted antibodies‚ complement proteins and certain antimicrobial peptides. Humoral immunity is so named because it involves substances found in the humours‚ or body fluids. The study of the molecular and cellular components that comprise the immune system‚ including their function and interaction‚ is the
Premium Immune system