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Immunity Flashcards

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5300637126Common INTRA-cellular accumulationsFat Hyaline Ca++ Proteins Glycogen Pigments0
5300651740Etiology"Cause"1
5300652160Pathogenesis"Insidious development" Sequence of events from the initial stimulus to the ultimate expression of the disease2
5300652161Morphology"Abnormal Anatomy"3
5300656003ApoptosisNormal cell death4
5300656004Necrosis"premature" or "untimely" cell death due to causes5
5300659886-plasiaGrowth6
5300659887METAplasianormal cells, but they are in the wrong place!7
5300661930DYSplasiaCells which are growing abnormally, and frequently are referred to as pre-malignant/pre-invasive growth8
5300663858-trophysize of the cell9
5300665245Atrophyshrinkage of cell due to loss of CELL SUBSTANCE (not water)10
5300666336What can cause atrophydecreased workload denervation decreased blood flow decreased nutrition aging11
5300668473Reversible cellular changes- reduced oxidative phosphorylation - ATP depletion - Cellular "swelling"12
5300670613Irreversible cell changes!) If the mitochrondria die, the cell dies 2) if the membrane can't keep the sodium out, the cell dies 3) if the lysosomes start to auto digest the cell, the cell is dead13
5300673099Three main causes of injurtyPhysical - trauma/heat/cold Chemical Infectious - bacteria, viruses14
5300674874What happens to nuclei when cells start to diesmaller, darker, fragmented, dissolved15
5300676464Gangrenous necrosisJust means dead, Might imply the loss of blood flow. Dry or wet16
5300676909Fibrinosis necrosisMeans that the dead tissue will stain the same colour as fibrinous tissue. Often used to describe damage walls of blood vessels.17
5300678140Caseous necrosisA term used for tissues that can no longer hold their shape well. If you cut them, they will fall apart. "cheese"18
5300680841Fibrinoid Necrosis19
5300685197Gangrene20
5300689334Shrinkage/HyperchromasiaShrinkage, increased nuclear staining, nuclear fragmentation.21
5300698993karyolysisnuclear dissolution22
5300698994Pyknosisclumping of nucleus23
5300699299KeryorrhesxisFragmentation of nucleus24
5300702872What is an obvious difference between apoptosis and necrosis?apoptosis is neat and intentional necrosis is messy25
5300722272Innate and Adaptive Immunity cells26
5300740285Toll Like Receptors are a type ofPattern Recognition Receptors (PRRs) They are a part of the innate immune system27
5300741992PRR's recognizePAMPs Pathogen-associated molecular patterns28
5300746138Principal cell of acute inflammationPolymorphonuclear leukocyte (PMN) - Neutrophils29
5300746891Principal cell of chronic inflammationMononuclear - leukocyte30
5300748294Cells of the innate immune systemNeutrophils Monocytes (Mast Cells) Eosinophils Basophils *NK cells31
5300750666Sequence of events in inflammation1) vasodilation 2) increased vascular permeability 3) leakage of exudate 4) Margination, rolling, adhesion 5) Diapedisis (transmigration) 6) Chemotaxis 7) PMN (neutrophils) activation 8) Phagocytosis32
5300754159Possible outcomes of inflammationresolution scar chronic inflammation33
5300755120Mast CellsBig bags of granules34
5300755580Where are mast cells locatedIn the loose connective tissues in your skin. Anywhere someone can penetrate the skin.35
5300756553When mast cells degranulate, like a squid squirting ink, what do they squirt out?Histamine chemotactic factors36
5300757858What does histamine doboo i'm scared! -vasodilation -smooth muscle contraction Now that i'm empty of my granules, i'm gonna synthesis more stuff - leukotrienes -prostaglandins -Platelet-activating Factor37
5300760712What do the chemotactic factors that the mast cells release do?Attract other white blood cells ex. neutrophil chemotactic factor (Guess what cell this chemotactic factor attracts? :))38
5300763791sooo.. what do the mast cell granules do?1) stimulate inflammation (vasodilation and smooth muscle contraction) 2) release chemotactic factors to attract other white blood cells to the scene of crime39
5300773425Leukotrieneswhite blood cells talking to each other40
5300774695prostaglandinshave a tendency to do things like sensitise the body to pain. They can also cause vasoactive effects.41
5300779349Leukocytes42
5300780576Which leukocytes are the first on the scene?Neutrophiils43
5300787575Neutrophils are especially eager to killbacteria and fungus (things that like to travel a lot)44
5300788745Eosinophils are especially eager to killparasites they are also found when you have allergies45
5300790192stages of white blood cells leaving the blood and entering the tissuesmargination rolling adhesion transmigration (diapedesis)46
5300790193heparinanticoagulant47
5300791156Monocytein blood (clark kent)48
5300794326MacrophageMonocyte once it is activated and enters the tissue (superman) "superMAcrophage" hehe49
5300797475Macrophages are found all over the body, and they have different names depending on where they are in the body. What are they called when they are in the brain?microglia50
5300800580How do macrophages/monocytes contribute to inflammation?They have specialised chemicals -interleukins IL-* (help communicate between white blood cells) -Tumor Necrosis Factor51
5300804620Monocyte actions that affect inflammation52
5300809196What cells use Nitric Oxide and Free Radicals to mess with (digest and kill) whatever they eat?macrophages! Monocytes53
5300812567Chemical messengers between white blood cellsCytokines (this is an umbrella term for a number of different chemical messengers)54
5300813786Main types of cytokinesInterleukins Tumor Necrosis Factor Interferon55
5300814634Interleukins are released by?Primarily macrophages and lymphocytes56
5300815405Tumor necrosis factor is released by?Macrophages57
5300820502What role do interferons play in the immune system?interrupt viral replication, are produced by virus-infected cells and help slow down viral infections58
5300824748Why do macrophages or lymphocytes release interleukins?They have detected a pathogen and they want to attract other white blood cells to the area, or they want to stimulate proliferation of other white blood cells (bone marrow?)59
5300827004Tumor Necrosis FactorIt is also secreted by macrophages. It is released because of PAMPs. The PAMP stimulates a TLR to be fired and then "poof" TNF is released.60
5300829912InterferonsPrimarily released by virally infected cells. The cells release this to tell other cells to be careful and not get infected themselves.61
5300833582Tumor Necrosis Factor-alphaProduced primarily by macrophage mediates acute inflammation directs WBC chemotaxis to tissue Stimulates liver enzyme release62
5300836595Interleukin-1Promotes acute inflammatory response stimulates coagulation enhances WBC migration increase tissue temp stimulates liver enzyme release63
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5300842873Acute vs Chronic InflammationAcute focuses on preventing spread and restorative healing chronic focuses on preventing spread and adaptive remodeling65
5300863322What are the three protein cascade systems that mediate the inflammation response?Complement System Coagulation System Kinin System66
5300864885What does complement do?It battles invaders! It either attacks it (punching holes in it's membrane), or it holds it down so that other parts of the immune system can get it.67
5300868150Where do the protein cascade systems live?They are always circulating in your blood waiting to be activated. as proenzymes "pro"= before activation68
5300870617Types of complement cascade?classical lectin alternative69
5300872428Which of the complement cascades is not part of the innate immunity (i.e. is part of the adaptive immunity)?Classical!70
5300873066What triggers the classical complement cascade?It needs an antigen antibody complex to trigger it.71
5300875154What triggers the alternative complement pathway?It is spontaneously activated by pathogen surfaces.72
5300876317Lectin complement pathway recognises?mannose sugar on the pathogens73
5300878267complement pathway can do..?stimulates the inflammatory response - stimulates mast cells - attract white blood cells to the area will try to directly kill the bacteria or it will stick to it.74
5300880953Where do all of the complement pathways converge?C375
5300882077What does C9 do?Creates the membrane attack complex76
5300884209What does complement do?ALL PATHS activate membrane attack complex opsonization chemotaxis (attract other cells to the area) inflammatory response77
5300891267Compliment works with all other immune cells78
5300896632Main component of the coagulation cascade?Fibrin79
5300923367Bradykininlocalised pain vasodilation smooth muscle constriction vascular leakage (oedema)80
5300930404-When the liver is stimulated, it released proteins into the blood -granules -synthesised in blood81
5300936523Adaptive Immune system82
5300943055Active immunityantibodies or t cells produced after either a natural exposure to an antigen or after immunization83
5300943579passive immunitypreformed antibodies or T-lymphocytes are transferred from a donor to a recipient84
5300959885What cells are antigen presenting cells?Dendritic cells and macrophagesf85
5300978328Two kinds of adaptive immunity responseshumoral and cell-mediated86
5300986349players of cell-mediated immune responseantigen-presenting cells (macrophages, dendritic cells) Helper T cells Cytotoxic T cells infected cells T cell stuff!87
5300996425CD8+Cytotoxic t cellz88
5300996865CD4+Helper T cells (generals!)89
5301004713Humoral Immune ResponseWhen the helper t cells recognise an infected cell and then go and activate the B cells to create plasma (memory) cells and antibodies90
5301006009Cell-Mediated Immune ResponseWhen the Helper T cell is presented an antigen by an APC and stimulates more Helper T cell proliferation. Helper T cells bind with a B cell that has also coincidentally eaten the same antigen and is presenting it as well. This binding triggers the B-Cells to proliferate (plasma cells and antibodies). complement is also activated to poke holes in invader.91
5301025201T CellsThey are there to kill virus infected cells and fungus cell. If you lose these cells, you get virus and fungus related problems92
5301031143T Cell differentiation occurs in....Cell-mediated immunity93
5301035524Humoral Immunity revolves around...B lymphocytes. B cells throw antibodies out into the environment, these antibodies circulate through the blood and try to kill invaders/attract other WBC to help fight.94
5301036203Humoral Immunity95
5301037492B cells becomePlasma cells (pumps out antibodies) Memory cells (not there to fight, hides in the closet until next infection)96
5301037939immunoglobulins are basicallyantibodies97
5301038447Which of the B cells crank out antibodiesplasma cells98
5301040053Whats the difference between antibodies and immunoglobulins?Antibodies - free floating in blood immunoglobulins - stuck to the surface of the cell99
5301047504complement can be activated bytons of stuff. antibodies, chemical messengers etc. just know that it happens100
5301050348Classes of antibodies GAMEDIgG, IgA, IgM, IgE, IgE101
5301050982most common antibodyIgG102
5301051524Which antibody can cross the placenta?IgG103
5301052187Which antibody is in all of the secretions of the body? Blood, mucus, milk, tears, saliva. Basically lines the surface of the body and helps protect you from invaders.IgA104
5301056419primary antibody of the primary responceIgM105
5301057093Which antibody is associated with histamine and allergies. Makes mast cells and basophils more reactive.IgE106
5301059351IgEfor parasites and allergic reactions107
5301059723Which granulocyte focuses on parasite attackeosinophils108
5301069205What glycoproteins identify the T cellsCD4 and CD8109
5301073055cytotoxic T cells secrete ____ to kill infected cellsperforin (they PERFORATE the cell)110
5301075969Which T cells stop cytotoxic T cells from hurting self?T regulatory Cells111
5301076658CD4 CellsThe president of the immune system T Helper cells Tell the immune cells what to do112
5301080750What triggers cell-mediated immunityantigen presenting cells113
5301081048cell-mediated immunity114
5301082772cytotoxic t cells do...either make cells commit apoptosis or secrete perforin to kill bad cells115
5301084841T helper cells are gossips CD4116
5301097705T-Helper cells come in two flavoursTh1 and Th2117
5301098140Th1 cellstalk to T cells. They stimulate cell-mediated immunity. They talk to Cytotoxic T cells118
5301099547Th2 cellsimportant for developing humeral immunity. They interact with the B cells and tell the B cells what to do.119
5301101692Natural Killer cellsrecognise self cells.120
5301107607Types of adhesion moleculessecretins, integrins121
5301108150secretinsthe adhesion molecules on the surface of endothelial cells (lining the vessels)122
5301110897integrinsthe adhesion molecules on the white blood cells that are going to go through diapedesis123
5301112368chemotaxisthe process by which the white blood cells travel to the site of injury. How do they know where to go? Through the use of chemicals.124
5301115372When granulocytes arrive at the site of battle and are 'activated' they secrete three things1) they undergo degranulation 2) secrete cytokines 3) produce eicosanoids125
5301116942eicosanoids20 chain fatty acids released by leukocytes (part of cell membranes) prostaglandins leukotrienes lipoxins126
5301120479prostaglandinsthink about what asprin does helps pain, fever, prevents clotting these eicosanoids: pain fever clotting127
5301121771leukotrienes do the opposite oflipoxins128
5301122577leukotrienes are involved inchemotaxis (bringing white blood cells where they need to be) vasoconstriction increased permeability129
5301123012lipoxinsinhibit chemotaxis vasodilation decreased permeability130
5301125322cytokinesproteins produced by many cells (primarily lymphocytes and macrophages) that have many roles in acute and chronic inflammation131
5301126486cytokines of macrophagesTNF-a and iL-1132
5301127111Chemokinessmall proteins which are attractants for PMNs133
5301131697exudate types of acute inflammationserous (watery) fibrinous (hemorrhagic, rich in fibrin) suppurative (pus) ulcerative134
5301132369something to remember about fibrinous exudatefibrin can be seen a lot, especially if there has been a lot of bleeding. Remember that fibrin is the end product of the coagulation cascade, so it's probably there to reduce further blood flow.135
5301134775What is usually in purulent exudateneutrophils136
5301137660four components of granulomasfibroblasts, lymphocytes, macrophages, giant cells137
5301138088giant cellsmacrophages that have fused and have multiple nuclei138
5301143050What are the five pathological processes of disease1) immunology, inflammation and repair 2) cell injury, necrosis, 3) circulatory disturbances 4) disorders of growth 5) pigmentations and tissue deposits139
5301148252inflammation ONLY occurs inliving tissue140
5301150588Inflammation can be harmful. How?-innate immunity has to potential to cause tissue damage -death of neutrophils releases free radicals -hypersensitivity of adaptive immunity141
5301152680How do we classify an inflammatory response?1) What kind of exudate is present 2) Time course142
5301153205Inflammatory time courseperacute acute subacute chronic143
5301153314peracuteminutes to hours144
5301153625acutehours to days145
5301153626subacuteseveral days to 1-2 weeks146
5301153922chronicmany days, weeks, months, years147
5301162723injury148
5301164160cells of chronic inflammationlymphocytes plasma cells macrophages149
5301165805cells of acute inflammationneutrophils, eosinophils, basophils150
5301166807acute pneumonia151
5301167447what is the difference between a leukocyte and an inflammatory cell?They are all neutrophils, eosinophils, basophils and lymphocytes. When circulating they are called leukocytes, when in tissues, they are called inflammatory cells152
5301170108to T or B cells dominate in circulationB cells153
5301171879Transudate is usually referred to asoedema154
5301171880transudateultrafiltrate of plasma, low specific gravity, lower protein concentration than that of plasma, low cellularity155
5301173379exudatelots of proteins, fibrinogen156
5301174069what plasma protein is abundant in exudate?fibrinogen!157
5301175021what is the difference between inflammatory and non-inflammatory oedema?exudate - inflammatory oedema transudate - oedema158
5301185054features of acute inflammationvasodilation increased fluid phase of exudate lots of neutrophils little repair haemorrhagic159
5301185055features of chronic inflammationlots of cells in the exudate mononuclear cells dominate repair (fibrosis) granulomas160
5301190748morphological diagnosis of disease SEVERITYminimal, milk, moderate, severe or marked161
5301191552Morphological diagnosis of disease DURATIONperacute, acute, subacute, chronic, chronic-active162
5301193853vascularity starts to decrease afterACUTE INFLAMMATION163
5301194436Morphological diagnosis DISTRIBUTIONfocal multifocal locally extensive diffuse164
5301198119When presenting a morphological diagnosis what is the order of your descriptors?organ tissue specific site within tissue distribution pathological process severity duration165
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