Immune System Period 1 - Mercer Island School District
... Your presentation should include: The main function(s) of the body system The main organs (or cell types) of this system and the function of each part At least one example of how this system helps to maintain homeostasis in the body Explanation of how the system works with other systems (some speci ...
... Your presentation should include: The main function(s) of the body system The main organs (or cell types) of this system and the function of each part At least one example of how this system helps to maintain homeostasis in the body Explanation of how the system works with other systems (some speci ...
Overview of the Immune System Zoran Galic Ph.D.
... It must detect self versus non-self It must differentiate different forms of non-self (flu virus looks different than HIV) Antigen (Ag)- the molecule or structure against which the immune response is directed The immune response only sees bio-organic molecules (proteins, sugars, fats, etc) Character ...
... It must detect self versus non-self It must differentiate different forms of non-self (flu virus looks different than HIV) Antigen (Ag)- the molecule or structure against which the immune response is directed The immune response only sees bio-organic molecules (proteins, sugars, fats, etc) Character ...
Lecture #23 - Suraj @ LUMS
... that increase capillary blood flow into the affected area (causing the areas to become heated and reddened). White Blood Cells can move out of the blood vessels to the site of infection. Phagocytes are a type of White Blood Cell that will recognize and engulf bacteria and other foreign substances, i ...
... that increase capillary blood flow into the affected area (causing the areas to become heated and reddened). White Blood Cells can move out of the blood vessels to the site of infection. Phagocytes are a type of White Blood Cell that will recognize and engulf bacteria and other foreign substances, i ...
Immune System
... - body response when the same antigen enters the body another time - within 1-2 days after infection there are high levels of antibodies & specialized cells B Cells & Antibodies (figure 10-9) Complement system – enzymes in the blood that burst bacterial cells T Cells & Immunity (figure 10-9) ...
... - body response when the same antigen enters the body another time - within 1-2 days after infection there are high levels of antibodies & specialized cells B Cells & Antibodies (figure 10-9) Complement system – enzymes in the blood that burst bacterial cells T Cells & Immunity (figure 10-9) ...
Chapter 21 The Immune System
... • New Terms: – Antigen: usually a protein found on the cell membrane of the pathogen that has attacked the body – Antibody: protein (nonliving) that reacts w/ antigen to mark the pathogen allowing it to be recognized & then eaten by a phagocyte ...
... • New Terms: – Antigen: usually a protein found on the cell membrane of the pathogen that has attacked the body – Antibody: protein (nonliving) that reacts w/ antigen to mark the pathogen allowing it to be recognized & then eaten by a phagocyte ...
Molecular Immunology
... - 25 gennaio 12.00-14.00 aula da definire - 08 febbraio 12.00-14.00 aula da definire - 22 febbraio 12.00-14.00 aula da definire - 15 giugno 12.00-14.00 aula da definire - 28 giugno 12.00-14.00 aula da definire - 12 luglio 12.00-14.00 aula da definire - 30 settembre 12.00-14.00 aula da definire ...
... - 25 gennaio 12.00-14.00 aula da definire - 08 febbraio 12.00-14.00 aula da definire - 22 febbraio 12.00-14.00 aula da definire - 15 giugno 12.00-14.00 aula da definire - 28 giugno 12.00-14.00 aula da definire - 12 luglio 12.00-14.00 aula da definire - 30 settembre 12.00-14.00 aula da definire ...
Role of the immune cells recognizing MHC-I like
... CNS pathologies, including neurodegenerative processes, are characterized by the presence of immune cell infiltration, which is however not well characterized. We address the question of the recruitment and the role of non-conventional immune cell populations, NK, NKT and T gamma-delta lymphocytes i ...
... CNS pathologies, including neurodegenerative processes, are characterized by the presence of immune cell infiltration, which is however not well characterized. We address the question of the recruitment and the role of non-conventional immune cell populations, NK, NKT and T gamma-delta lymphocytes i ...
Immunology Worksheet Allergy
... A Read and fill the gaps. The principal role of the immune system _____(1) to defend the body against possible infections by discriminating between self and non-self. The immune system has evolved over millions of years to respond and destroy any organisms _____(2) have gained entry into the body. T ...
... A Read and fill the gaps. The principal role of the immune system _____(1) to defend the body against possible infections by discriminating between self and non-self. The immune system has evolved over millions of years to respond and destroy any organisms _____(2) have gained entry into the body. T ...
Bauman Chapter 1 Answers to Critical Thinking Questions
... presentation of the antigenic determinants from intracellular parasites; without them, the mice are highly susceptible to infection by viruses and other intracellular pathogens. Class II MHC are produced by antigen presenting cells for use in presenting antigen to T helper cells, which require antig ...
... presentation of the antigenic determinants from intracellular parasites; without them, the mice are highly susceptible to infection by viruses and other intracellular pathogens. Class II MHC are produced by antigen presenting cells for use in presenting antigen to T helper cells, which require antig ...
Unit 4 Topic 6: Infection, immunity and forensics Revision questions
... 1. How DNA profiling is used for identification and determining genetic relationships between organisms (plants and animals). 2. The role of micro-organisms in the decomposition of organic matter and the recycling of carbon. 3. The major routes pathogens may take when entering the body and explain t ...
... 1. How DNA profiling is used for identification and determining genetic relationships between organisms (plants and animals). 2. The role of micro-organisms in the decomposition of organic matter and the recycling of carbon. 3. The major routes pathogens may take when entering the body and explain t ...
BIOL212Test3Guide30MAY2012
... Cellular Innate Defenses Toll-like Receptors Neutrophils Macrophages Eosinophils Dendritic cells Natural Killer Cells Antimicrobial Peptides & Proteins Interferons Complement System Inflammatory Response Histamines (antihistamines) Mast cells Cytokines ...
... Cellular Innate Defenses Toll-like Receptors Neutrophils Macrophages Eosinophils Dendritic cells Natural Killer Cells Antimicrobial Peptides & Proteins Interferons Complement System Inflammatory Response Histamines (antihistamines) Mast cells Cytokines ...
adaptive immune system - Zanichelli online per la scuola
... TH cells are the target of human immunodeficiency virus (HIV), the retrovirus that results in (AIDS) acquired immune deficiency syndrome. HIV can be transmitted by bodily fluids containing the virus (blood, semen, vaginal fluid, or breast milk). ...
... TH cells are the target of human immunodeficiency virus (HIV), the retrovirus that results in (AIDS) acquired immune deficiency syndrome. HIV can be transmitted by bodily fluids containing the virus (blood, semen, vaginal fluid, or breast milk). ...
PowerPoint Presentation - Defense against Disease
... Immune Response- Step by Step 1. Pathogen (carrying foreign antigens) enters and survives the inflammatory response 2. Some pathogens remain exposed in tissues where their antigens may be recognized by circulating B cells ...
... Immune Response- Step by Step 1. Pathogen (carrying foreign antigens) enters and survives the inflammatory response 2. Some pathogens remain exposed in tissues where their antigens may be recognized by circulating B cells ...
Revision: The Immune and Nervous Systems
... • Begin life in the bone tissue and migrate to the thymus gland • Attack cells that have become infected • They signal the cell to self destruct • Stimulate the formation of B-cells • Response is not immediate, the body will suffer symptoms of the disease ...
... • Begin life in the bone tissue and migrate to the thymus gland • Attack cells that have become infected • They signal the cell to self destruct • Stimulate the formation of B-cells • Response is not immediate, the body will suffer symptoms of the disease ...
Intro to Immune System Chpt. 1
... • in periphery they express a unique surface antibody • Plasma cells differentiated B cell, short lifespan, antibody factory • Memory B cell (CD45RO), long life span ...
... • in periphery they express a unique surface antibody • Plasma cells differentiated B cell, short lifespan, antibody factory • Memory B cell (CD45RO), long life span ...
Immune System
... Each antibody can hold onto more than one pathogen, causing them to clump together, which makes them easier to engulf They signal the complement system or phagocytes to destroy the pathogens You need 1000’s of different antibodies because there are 1000’s of different antigens Antibody mediated r ...
... Each antibody can hold onto more than one pathogen, causing them to clump together, which makes them easier to engulf They signal the complement system or phagocytes to destroy the pathogens You need 1000’s of different antibodies because there are 1000’s of different antigens Antibody mediated r ...
Foundation Block Lecture Two Natural defense mechanism
... Microbial infections initiate inflammation As bacteria possess an array of pro-inflammatory molecules: e.g. Lipopolysaccharides (LPS) ...
... Microbial infections initiate inflammation As bacteria possess an array of pro-inflammatory molecules: e.g. Lipopolysaccharides (LPS) ...
Adaptive immune system
The adaptive immune system, also known as the acquired immune or, more rarely, as the specific immune system, is a subsystem of the overall immune system that is composed of highly specialized, systemic cells and processes that eliminate or prevent pathogen growth. The adaptive immune system is one of the two main immunity strategies found in vertebrates (the other being the innate immune system). Adaptive immunity creates immunological memory after an initial response to a specific pathogen, leads to an enhanced response to subsequent encounters with that pathogen. This process of acquired immunity is the basis of vaccination. Like the innate system, the adaptive system includes both humoral immunity components and cell-mediated immunity components.Unlike the innate immune system, the adaptive immune system is highly specific to a specific pathogen. Adaptive immunity can also provide long-lasting protection: for example; someone who recovers from measles is now protected against measles for their lifetime but in other cases it does not provide lifetime protection: for example; chickenpox. The adaptive system response destroys invading pathogens and any toxic molecules they produce. Sometimes the adaptive system is unable to distinguish foreign molecules, the effects of this may be hayfever, asthma or any other allergies. Antigens are any substances that elicit the adaptive immune response. The cells that carry out the adaptive immune response are white blood cells known as lymphocytes. Two main broad classes—antibody responses and cell mediated immune response—are also carried by two different lymphocytes (B cells and T cells). In antibody responses, B cells are activated to secrete antibodies, which are proteins also known as immunoglobulins. Antibodies travel through the bloodstream and bind to the foreign antigen causing it to inactivate, which does not allow the antigen to bind to the host.In acquired immunity, pathogen-specific receptors are ""acquired"" during the lifetime of the organism (whereas in innate immunity pathogen-specific receptors are already encoded in the germline). The acquired response is called ""adaptive"" because it prepares the body's immune system for future challenges (though it can actually also be maladaptive when it results in autoimmunity).The system is highly adaptable because of somatic hypermutation (a process of accelerated somatic mutations), and V(D)J recombination (an irreversible genetic recombination of antigen receptor gene segments). This mechanism allows a small number of genes to generate a vast number of different antigen receptors, which are then uniquely expressed on each individual lymphocyte. Because the gene rearrangement leads to an irreversible change in the DNA of each cell, all progeny (offspring) of that cell inherit genes that encode the same receptor specificity, including the memory B cells and memory T cells that are the keys to long-lived specific immunity.A theoretical framework explaining the workings of the acquired immune system is provided by immune network theory. This theory, which builds on established concepts of clonal selection, is being applied in the search for an HIV vaccine.