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75 Cards in this Set
- Front
- Back
these cells are present during acute inflammation
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PMNs, basophils, eosinophils, mast cells
(polymorphonuclear leukocytes) |
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these cells are present during chronic inflammation
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plasma cells, B/T lymphocytes, macrophages
(mononuclear leukocytes) |
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these are the local clinical (observable) signs of acute inflammation
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calor (heat) rubor (redness), tumor (swelling), dolor (pain), funtio laesa (loss of function)
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what are the 2 general themes of inflammation?
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inflammation, repair
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the basic pattern of acute inflammation is the same, but intensity is determined by (2 things):
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strength of the attacker
reactive capability of the host |
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hemodynamic changes that occur with acute inflammation are:
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1. transient vasoconstriction
2. vasodilation 3. changes in vascular permeability |
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types of exudates of acute inflammation (4)
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1. serous
2. fibrinous 3. purulent 4. hemorrhagic |
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causes of vascular permeability (5)
(3 of these causes involving endothelium) |
1. endothelial cell contraction
2. endothelial cell retraction 3. endothelial cell injury 4. leukocyte-dependent injury 5. leakage from new blood vessels |
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this is released from mast cells and makes the endothelium of the vasculature contract
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histamine
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an example of vascular permeability from endothelial cell injury
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sunburn (which leads to dead cells and inflammation in order to regrow cells through repair the dead tissue)
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this is the term for the movement of WBC from the center to periphery
(roll and tumble, slow and stick: selectins) |
margination
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this is the chemical signal for margination
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Interleukin-1 (IL-1) and TNF
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what is the term for the activation of adhesion molecules on the vascular endothelium (ICAM and VCAM). these adhesion molecules interact with integrins on WBC
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pavementing
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the term for the movement of WBCs out of the vasculature and into the infected tissue is
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emigration
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these are the first acute inflammatory cells at the site of bacterial inflammation
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PMNs
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________ are the first acute inflammatory cells at the site of fugal infection
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PMNs
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these are the first acute inflammatory cells at the site of viral/immune infection
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lymphocytes
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this WBC type is the first to arrive at the site of an allergic reaction OR a parasitic infestation
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eosinophils
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the communication between WBCs in order to direct certain cell types to the site of infection is known as
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chemotaxis
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corticosteroids inhibit ______, which helps to keep cells from moving into tissue and destroying it
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IL-1
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phagocytosis of bacteria stimulates phagocyte ______, which then generates ROS
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oxidase
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a phagolysosome contains these different components, which break down bacteria upon phagocytosis
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1. lysosomal enzymes
2. lysozyme 3. major basic protein 4. defensins 5. enzyme: myeloperoxidase |
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what effect do vasoactive amines (specifically histamine) have on the surrounding tissue?
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1. dilation of BV (interacts with H1 receptors on BV)
2. increased vascular permeability and VE activation |
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name the 3 symptoms of the triple response of Lewis
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1. Red spot: due to capillary dilation
2. Wheal: raised spot on flesh, due to exudation of fluid from capillaries and venules 3. Flare: redness in the surrounding area due to arteriolar dilatation mediated by axon reflex. |
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what are the functions of the complement pathway?
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increased vascular permeability, leukocyte chemotaxis, opsinization, cell lysis
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the C3a receptor functions to...
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stimulate mast cells to release histamine
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the C3b receptor functions to...
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aid in opsinization
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the C5a receptor is responsible for...
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anaphylatoxin (activates the arachidonic acid pathway)
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MAC attack! (what does MAC do?)
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Membrane Attack Complex
this perforates the cell membrane with holes |
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_________ inhibit the arachidonic acid pathway
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corticosteroids
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NSAIDS inhibit the ___________ pathway
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cyclooxygenase
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the cycooxygenase pathway is involved in the production of __________ and _________ from arachidonic acid
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prostaglandins and thromboxanes
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_____ _ ______ ______ incorporate into membranes, but are not easily broken down into AA
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omega-3 fatty acids
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_______ _______ block the lipoxygenase pathway
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leukotriene inhibitors
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the lipoxygenase pathway is involved in the production of _____ and ________
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leukotrienes and lipoxins
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prostaglandins cause (5 things)
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1. vasodilation
2. potentiates inflammation 3. inhibits platelets 4. pain 5. fever |
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leukotrienes cause (3 things)
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1. vasoconstriction
2. bronchospasm 3. increased vascular permeability |
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_____ system leades to formation of bradykinin and activates fibrinolytic system
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kinin
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what are the 3 inter-related systems of plasma proteases?
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complement pathway, clotting, kinin-fibrolytic
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this is the dietary name given to the majority of phospholipids in the cell membrane
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linoleic acid
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the ______ system leads to thrombin formation
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clotting
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_______ __ activates plasma proteases
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Factor XII
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steroid use can lead to
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increased IOP and cataracts
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leukotrienes are typically used to prevent ________ attacks
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asthma
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long term use of NSAIDS can induce _________ in ________
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asthma in asthmatics
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the etymology of the term cytokine is
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cyto- cell
kine- released (chemicals released by cells) |
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_____ induces the growth of new blood vessels
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VEG-F
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__ is very short lived, causes very rapid vasodilation, has cytotoxic effects
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NO
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_____ causes cachexia (the part of illness that makes you feel horrible)
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TNF (tumor necrosis factor)
**cachexia is a big deal with cancer patients, AIDS patients, pregnant women |
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what are the 3 characteristics of chronic inflammation?
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1. mononuclear lymphocytes (macrophages, lymphocytes, plasma cells--eosinophils in immune response)
2. proliferation of fibroblasts 3. angiogenesis |
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name the 4 parts characteristic of a granuloma
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1. epithelioid macrophages
2. central caseous necrosis 3. giant cells 4. rim of lymphocytes |
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what are the two types of giant cells seen in granulomatous tissue?
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langhans (nuclei around border)
foreign body (nuclei interspersed) |
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if you put a Pt on Ab and the Pt develops a rash, have them ______ the Ab immediately
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stop
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TB is caused by this strain of bacteria
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mycobacterium tuberculosis
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these are the 3 typical, characteristic stages of cellular necrosis
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karyolysis
pyknosis karyorrhexis |
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define necrosis
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the sum of the morphological changes following cell death
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the three microscopic characteristics indicative of necrosis
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karyolysis
pyknosis karyorrhexis |
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what are the three types of typical necrosis?
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coagulative
liquefactive caseous |
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what are the typical components of granulation tissue?
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new blood vessels (angiogenesis), fibroblasts, chronic inflammatory cells
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what is the hormone involved in neovascularization of scar tissue formation?
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VEG-F (Vascular Endothelium Growth Factor)
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this is the term given to the loss of central vision due to neovascularization of the macula
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wet macula degeneration
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"wet" macular degeneration involves ________ at the macula
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neovascularization
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proliferative diabetic retinopathy involves neovascularization retinal tissue because of _______
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hypoxia
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these 2 drugs are used to treat diabetic retinopathy
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anti-VEG-F
corticosteroids |
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this type of wound healing involves a clean cut, minor neovascularization, and minor scar formation
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healing by first intention
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this is the type of scar that involves type I or type III collagen formation. it is the result of overgrowth of granulation tissue
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keloid
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this type of TB shows macrophages transporting the bacteria throughout the body
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miliary TB
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this is caused or begun in order to prevent the cell from causing an autoimmune response
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apoptosis
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_______ cells have a lower level of replication than do labile cells
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stabile (liver cells)
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________ cells have a high rate of replication
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labile
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________ cells can't regenerate
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permanent
(i.e. corneal endo, neurons, cardiac muscle cells) |
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with regard to DM, if the fundus displays a vascular net (neovascularization), it can be assumed that the _______ aren't functioning
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kidneys
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term for big group of blood vessels gwring in (can be used for corneal neovascularization or arthritic neovascularization)
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pannus
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_______ pull together scar tissue after formation of scar tissue
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myofibroblasts
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factors affecting healing
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1. age
2. nutrition 3. blood diseases 4. diabetes mellitus 5. corticosteroids 6. local influences |