TITLE of LESSON Immune system – Components of the immune
... Students discover the components of the immune system, regarding in overview the lymphatic system an in detail the structrure and function of a lymph node. Phagocytosis of white blood cells are identified as nonspecific immune response. The learning resources facilitate differentiated and collaborat ...
... Students discover the components of the immune system, regarding in overview the lymphatic system an in detail the structrure and function of a lymph node. Phagocytosis of white blood cells are identified as nonspecific immune response. The learning resources facilitate differentiated and collaborat ...
System has Specificity and Memory
... Most antigens are processed by antigen-presenting cells including macrophages such that the antigen fragments are in a state that lymphocytes can be stimulated. Antigen presentation is in the context of the major histocompatibility complex (MHC). ...
... Most antigens are processed by antigen-presenting cells including macrophages such that the antigen fragments are in a state that lymphocytes can be stimulated. Antigen presentation is in the context of the major histocompatibility complex (MHC). ...
9.AM Shiv Pillai Cells of the Immune System and Innate Immunity
... The innate immune system is made up of molecules and cellular processes that defend the host within minutes and hours after exposure to a noxious stimulus. It is the only immune system in plants and invertebrates. Innate immune responses may initiate acute inflammation, which basically involves the ...
... The innate immune system is made up of molecules and cellular processes that defend the host within minutes and hours after exposure to a noxious stimulus. It is the only immune system in plants and invertebrates. Innate immune responses may initiate acute inflammation, which basically involves the ...
Lymphatic System and Immunity
... • Lymph returns to the bloodstream most of the small proteins that leak out of the blood capillaries. •At the same time, lymph transports foreign particles, such as bacteria or viruses, to lymph nodes. ...
... • Lymph returns to the bloodstream most of the small proteins that leak out of the blood capillaries. •At the same time, lymph transports foreign particles, such as bacteria or viruses, to lymph nodes. ...
Bio_132_files/Blood and Immunity
... memory. The adaptive (specific) immune system: – Recognizes specific foreign substances (Antigens) : • Substances that can mobilize the immune system and provoke an immune response – This the body sees as foreign (bad) – Acts to immobilize, neutralize, or destroy these antigens – Amplifies inflammat ...
... memory. The adaptive (specific) immune system: – Recognizes specific foreign substances (Antigens) : • Substances that can mobilize the immune system and provoke an immune response – This the body sees as foreign (bad) – Acts to immobilize, neutralize, or destroy these antigens – Amplifies inflammat ...
Immune Regulation, Tolerance, and Autoimmunity
... is death (deletion), BUT: Some B cells may change their specificity (called “receptor editing”) Some T cells may differentiate into regulatory (suppressor) T lymphocytes ...
... is death (deletion), BUT: Some B cells may change their specificity (called “receptor editing”) Some T cells may differentiate into regulatory (suppressor) T lymphocytes ...
MCB 150: Molecular Immunology - Department of Molecular & Cell
... mechanisms. They also help to activate T cells (connection between innate and adaptive immunity) NK cells are lymphocytes that have characteristics of innate and adaptive immunity. ...
... mechanisms. They also help to activate T cells (connection between innate and adaptive immunity) NK cells are lymphocytes that have characteristics of innate and adaptive immunity. ...
IMMUNITY
... function early in infection • If microbes penetrate the first line of defense, they face the second line of defense; death ...
... function early in infection • If microbes penetrate the first line of defense, they face the second line of defense; death ...
IMMUNOLOGY OF TRANSPLANTATION
... Disparity of several minor antigens may result in rejection, even when MHC antigens are concordant between donor and recipient They include blood group antigens, tissue and organ antigens, normal cellular constituents They are peptides derived from polymorphic cellular proteins bound to MHC class I ...
... Disparity of several minor antigens may result in rejection, even when MHC antigens are concordant between donor and recipient They include blood group antigens, tissue and organ antigens, normal cellular constituents They are peptides derived from polymorphic cellular proteins bound to MHC class I ...
Inadequate flow of oxygen into the respiratory system due to
... antigen displayed on the surface of the infected cells bind to the infected cells and produce chemicals that kill the infected cell. Death of the infected cells results in the destruction of the pathogen. ...
... antigen displayed on the surface of the infected cells bind to the infected cells and produce chemicals that kill the infected cell. Death of the infected cells results in the destruction of the pathogen. ...
Non-specific defenses
... do not distinguish between one threat and another are present at birth include: physical barriers (e.g. skin), phagocytic cells, inflammation, fevers, etc. provides body with “non-specific resistance” ...
... do not distinguish between one threat and another are present at birth include: physical barriers (e.g. skin), phagocytic cells, inflammation, fevers, etc. provides body with “non-specific resistance” ...
CHAPTER 24 The Immune System
... • Disease causing agents such as bacteria, viruses, fungi, protozoans, and other parasites. ( NOT all microorganisms are pathogens) ...
... • Disease causing agents such as bacteria, viruses, fungi, protozoans, and other parasites. ( NOT all microorganisms are pathogens) ...
disease emergence and re-emergence
... • Types of Parasites: – Protozoa: Single-celled, microscopic organisms that can perform all necessary functions of metabolism and reproduction. Some protozoa are free-living, while others parasitize other organisms for their nutrients and life cycle. • The morphology of protozoa varies widely and in ...
... • Types of Parasites: – Protozoa: Single-celled, microscopic organisms that can perform all necessary functions of metabolism and reproduction. Some protozoa are free-living, while others parasitize other organisms for their nutrients and life cycle. • The morphology of protozoa varies widely and in ...
Microbiology: A Systems Approach, 2nd ed.
... Against Self, or Autoimmunity • Autoimmunity: an individual develops hypersensitivity to him or herself • Autoimmune diseases: autoantibodies and/or T cells mount an abnormal attack against self antigens • Systemic: involve several major organs • Organ-specific: involve only one organ or tissue • Us ...
... Against Self, or Autoimmunity • Autoimmunity: an individual develops hypersensitivity to him or herself • Autoimmune diseases: autoantibodies and/or T cells mount an abnormal attack against self antigens • Systemic: involve several major organs • Organ-specific: involve only one organ or tissue • Us ...
Objectives 1. Briefly describe the cellular and humoral components
... that manage to penetrate these barriers are quickly removed by neutrophils and other leukocytes in the adjacent connective tissue. Other leukocytes orchestrate the defenses at sites of penetration natural killer ( NK ) cells destroy various unhealthy host cells, includi ...
... that manage to penetrate these barriers are quickly removed by neutrophils and other leukocytes in the adjacent connective tissue. Other leukocytes orchestrate the defenses at sites of penetration natural killer ( NK ) cells destroy various unhealthy host cells, includi ...
Tumor Immunology - TOP Recommended Websites
... 3) altered tissue-specific affinities 4) biochemical changes 5) chromosomal abnormalities ...
... 3) altered tissue-specific affinities 4) biochemical changes 5) chromosomal abnormalities ...
Babies vitamin D status impacts immune system development: Study
... newborn baby's umbilical cord – were taken from 50 babies born in November and 50 born in May between 2009 and 2010 in London. The blood was analysed to measure levels of vitamin D and levels of autoreactive T-cells. T-cells are white blood cells that play a crucial role in the body's immune respons ...
... newborn baby's umbilical cord – were taken from 50 babies born in November and 50 born in May between 2009 and 2010 in London. The blood was analysed to measure levels of vitamin D and levels of autoreactive T-cells. T-cells are white blood cells that play a crucial role in the body's immune respons ...
NVCC Bio 212 - gserianne.com
... Body Defenses Against Infection • pathogen • disease causing agent • bacteria, viruses, etc ...
... Body Defenses Against Infection • pathogen • disease causing agent • bacteria, viruses, etc ...
prevent - Model High School
... the body responds with Adaptive Immune Response cell-mediated immunity, humoral immunity ...
... the body responds with Adaptive Immune Response cell-mediated immunity, humoral immunity ...
Sensing infection and tissue damage
... This sequence-specific antiviral RNAi response was thought to have been lost during vertebrate evolution of the IFN response even though the RNAi machinery itself has been preserved and is used for miRNAs generation and action. In fact, sequence-specific antiviral RNAi is not absent in mammals and w ...
... This sequence-specific antiviral RNAi response was thought to have been lost during vertebrate evolution of the IFN response even though the RNAi machinery itself has been preserved and is used for miRNAs generation and action. In fact, sequence-specific antiviral RNAi is not absent in mammals and w ...
Immune system
The immune system is a system of many biological structures and processes within an organism that protects against disease. To function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue. In many species, the immune system can be classified into subsystems, such as the innate immune system versus the adaptive immune system, or humoral immunity versus cell-mediated immunity.Pathogens can rapidly evolve and adapt, and thereby avoid detection and neutralization by the immune system; however, multiple defense mechanisms have also evolved to recognize and neutralize pathogens. Even simple unicellular organisms such as bacteria possess a rudimentary immune system, in the form of enzymes that protect against bacteriophage infections. Other basic immune mechanisms evolved in ancient eukaryotes and remain in their modern descendants, such as plants and insects. These mechanisms include phagocytosis, antimicrobial peptides called defensins, and the complement system. Jawed vertebrates, including humans, have even more sophisticated defense mechanisms, including the ability to adapt over time to recognize specific pathogens more efficiently. Adaptive (or acquired) immunity creates immunological memory after an initial response to a specific pathogen, leading to an enhanced response to subsequent encounters with that same pathogen. This process of acquired immunity is the basis of vaccination.Disorders of the immune system can result in autoimmune diseases, inflammatory diseases and cancer.Immunodeficiency occurs when the immune system is less active than normal, resulting in recurring and life-threatening infections. In humans, immunodeficiency can either be the result of a genetic disease such as severe combined immunodeficiency, acquired conditions such as HIV/AIDS, or the use of immunosuppressive medication. In contrast, autoimmunity results from a hyperactive immune system attacking normal tissues as if they were foreign organisms. Common autoimmune diseases include Hashimoto's thyroiditis, rheumatoid arthritis, diabetes mellitus type 1, and systemic lupus erythematosus. Immunology covers the study of all aspects of the immune system.