PowerPoint
... immune system – this allows for selective destruction of invading pathogens without destruction of host tissues – involves major histocompatibility complex ...
... immune system – this allows for selective destruction of invading pathogens without destruction of host tissues – involves major histocompatibility complex ...
Lecture #19 Date ______
... too large to cross placenta IgG: most abundant; crosses walls of blood vessels and placenta; protects against bacteria, viruses, & toxins; activates ...
... too large to cross placenta IgG: most abundant; crosses walls of blood vessels and placenta; protects against bacteria, viruses, & toxins; activates ...
Immune system II
... ! Lymphocyte stem cells (B cells and others) differentiate to become potential antibody producing cells, each capable of producing one antibody (of random specificity). ! Presence of antigen stimulates cell division of the cell(s) that make antibodies that react with that antigen to produce a clone ...
... ! Lymphocyte stem cells (B cells and others) differentiate to become potential antibody producing cells, each capable of producing one antibody (of random specificity). ! Presence of antigen stimulates cell division of the cell(s) that make antibodies that react with that antigen to produce a clone ...
35-3 and 35-4 PowerPoint Notes
... produce immunity is known as a ______________. The term comes from the Latin word vacca, meaning “cow,” as a reminder of Jenner’s work. Active immunity may develop as a result of natural exposure to an __________ (fighting an infection) or from deliberate exposure to the antigen (through a vaccine). ...
... produce immunity is known as a ______________. The term comes from the Latin word vacca, meaning “cow,” as a reminder of Jenner’s work. Active immunity may develop as a result of natural exposure to an __________ (fighting an infection) or from deliberate exposure to the antigen (through a vaccine). ...
Topic 10 revision notes - Mr Cartlidge`s Saigon Science Blog
... State that antibodies lock on to antigens leading to direct destruction of pathogens, or marking of pathogens for destruction by phagocytes Explain how each pathogen has its own antigens, which have specific shapes, so specific antibodies which fit the specific shapes of the antigens are needed Defi ...
... State that antibodies lock on to antigens leading to direct destruction of pathogens, or marking of pathogens for destruction by phagocytes Explain how each pathogen has its own antigens, which have specific shapes, so specific antibodies which fit the specific shapes of the antigens are needed Defi ...
THE IMMUNE SYSTEM
... A. Skin and mucous membranes B. Phagocytic cells, inflammation response and antimicrobial proteins • Specific – antigens interact with specificity and diversity ...
... A. Skin and mucous membranes B. Phagocytic cells, inflammation response and antimicrobial proteins • Specific – antigens interact with specificity and diversity ...
Title: Unravelling the host innate immune response to enteral
... Crohn’s Disease (CD) is a chronic incurable inflammatory bowel disorder that has recently become increasingly common, including in childhood. Although the precise pathogenesis of CD is not fully clarified, gut bacteria play key roles. One candidate bacterial species is Adherent Invasive Escherichia ...
... Crohn’s Disease (CD) is a chronic incurable inflammatory bowel disorder that has recently become increasingly common, including in childhood. Although the precise pathogenesis of CD is not fully clarified, gut bacteria play key roles. One candidate bacterial species is Adherent Invasive Escherichia ...
Gilead
... • Mucus – traps pathogens for WBCs to kill, cilia sweeps • Vomiting – removes toxins and pathogens from stomach • Urination – slightly acidic, cleanses urinary tract • Defecation – removes bacteria from GI tract • Resident bacteria – outcompete harmful organisms ...
... • Mucus – traps pathogens for WBCs to kill, cilia sweeps • Vomiting – removes toxins and pathogens from stomach • Urination – slightly acidic, cleanses urinary tract • Defecation – removes bacteria from GI tract • Resident bacteria – outcompete harmful organisms ...
Glossary - The Polesworth School
... genetic information that influences a characteristic of the organism. Chromosomes are found in the nuclei of cells. An individual that is genetically identical to the parent because it is produced by mitosis. The genetic material found in the nucleus of living cells. Chromosomes are made up of DNA, ...
... genetic information that influences a characteristic of the organism. Chromosomes are found in the nuclei of cells. An individual that is genetically identical to the parent because it is produced by mitosis. The genetic material found in the nucleus of living cells. Chromosomes are made up of DNA, ...
Innate Immune System
... 7. What are phagocytes and what are their functions? What groups of bacteria can avoid their actions? Phagocytes include macrophages, neutrophils, NK cells, eosinophils and basophils. They all ingest foreign pathogens through phagocytosis, a process that is facilitated by opsonisation. The ingested ...
... 7. What are phagocytes and what are their functions? What groups of bacteria can avoid their actions? Phagocytes include macrophages, neutrophils, NK cells, eosinophils and basophils. They all ingest foreign pathogens through phagocytosis, a process that is facilitated by opsonisation. The ingested ...
31.4 Immunity and Technology
... Produce memory cells 11. Memory cells do not have to be activated- they respond right away. 12.Vaccines are made of : dead, whole pathogens, weak pathogens, pieces of pathogens, bacterial toxins ...
... Produce memory cells 11. Memory cells do not have to be activated- they respond right away. 12.Vaccines are made of : dead, whole pathogens, weak pathogens, pieces of pathogens, bacterial toxins ...
Viruses and host defenses
... Use mutant animals/genetic defects in humans Infect and block specific defenses Do in vitro studies ...
... Use mutant animals/genetic defects in humans Infect and block specific defenses Do in vitro studies ...
Chapter 43 - The Immune System
... ◦ Performed by B and T cells B lymphocytes (B cells) and T lymphocytes (T cells) circulate in blood and lymph Found in spleen and lymph nodes Recognized by antibodies to the particular antigen Both contain membrane-bound antigen receptors which allows them to recognize specific epitopes (whe ...
... ◦ Performed by B and T cells B lymphocytes (B cells) and T lymphocytes (T cells) circulate in blood and lymph Found in spleen and lymph nodes Recognized by antibodies to the particular antigen Both contain membrane-bound antigen receptors which allows them to recognize specific epitopes (whe ...
Topic 6 Checkpoint Answers File
... antigen. Active natural immunity develops following an infection. The ‘specific immune response’ to the foreign antigens produces a supply of antibodies and B memory and T memory cells that will respond quickly if the body is reinfected with the same pathogen. Active artificial immunity develops fol ...
... antigen. Active natural immunity develops following an infection. The ‘specific immune response’ to the foreign antigens produces a supply of antibodies and B memory and T memory cells that will respond quickly if the body is reinfected with the same pathogen. Active artificial immunity develops fol ...
Receptors
... important for appropriate functions • Identification of lack of self – can start reaction (Ca decrease amount of MHC I molecules, that enable Natural Killers – NK cells – to destroy self cells) • Recognition of foreign – via 2 types of receptors: - PRR – on cell surface membrane of as soluble molecu ...
... important for appropriate functions • Identification of lack of self – can start reaction (Ca decrease amount of MHC I molecules, that enable Natural Killers – NK cells – to destroy self cells) • Recognition of foreign – via 2 types of receptors: - PRR – on cell surface membrane of as soluble molecu ...
Chapter 37 Objectives and other Animal System Material
... 20. Distinguish between primary and secondary immune response 21. Describe the mechanism of clonal selection 22. Describe the cellular basis for immunological memory 23. Explain how the humoral (antibody mediated immune response) response is provoked 24. Explain how B cells are activated 25. Outline ...
... 20. Distinguish between primary and secondary immune response 21. Describe the mechanism of clonal selection 22. Describe the cellular basis for immunological memory 23. Explain how the humoral (antibody mediated immune response) response is provoked 24. Explain how B cells are activated 25. Outline ...
Ch_31_Immune_system
... Small proteins released infected cells to ‘warn’ healthy cells of presence of pathogens which allows healthy cells to protect themselves from destruction Complement 11 complement proteins Attachment of antibodies to target cell membrane Stimulated by attachment of pathogens to cell wall/membrane ...
... Small proteins released infected cells to ‘warn’ healthy cells of presence of pathogens which allows healthy cells to protect themselves from destruction Complement 11 complement proteins Attachment of antibodies to target cell membrane Stimulated by attachment of pathogens to cell wall/membrane ...
Lymphatic System
... Red pulp- high in red blood cells, lymphocytes, and macrophages Filters Blood ...
... Red pulp- high in red blood cells, lymphocytes, and macrophages Filters Blood ...
Innate immune system
The innate immune system, also known as the nonspecific immune system, is an important subsystem of the overall immune system that comprises the cells and mechanisms that defend the host from infection by other organisms. The cells of the innate system recognize and respond to pathogens in a generic way, but, unlike the adaptive immune system (which is found only in vertebrates), it does not confer long-lasting or protective immunity to the host. Innate immune systems provide immediate defense against infection, and are found in all classes of plant and animal life. They include both humoral immunity components and cell-mediated immunity components.The innate immune system is an evolutionarily older defense strategy, and is the dominant immune system found in plants, fungi, insects, and primitive multicellular organisms.The major functions of the vertebrate innate immune system include: Recruiting immune cells to sites of infection, through the production of chemical factors, including specialized chemical mediators, called cytokines Activation of the complement cascade to identify bacteria, activate cells, and promote clearance of antibody complexes or dead cells The identification and removal of foreign substances present in organs, tissues, the blood and lymph, by specialised white blood cells Activation of the adaptive immune system through a process known as antigen presentation Acting as a physical and chemical barrier to infectious agents.↑ ↑ ↑