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Hematology & Immunology Important Terms to Know

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show Plasma proteins too large to pass through the wall of a blood vessel. Most common protein in blood.  
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show Any substance (as an immunogen) foreign to the body that evokes an immune response.  
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complement   show
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ecchymoses   show
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embolus   show
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histamine   show
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show The most common type of lymphoma.  
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show Not susceptible or responsive.  
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show A ratio or other number derived from a series of observations and used as an indicator or measure  
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interferon   show
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show A clear, watery, sometimes faintly yellowish fluid derived from body tissues that contains white blood cells and circulates throughout the lymphatic system, returning to the venous bloodstream through the thoracic duct.  
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mean   show
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node   show
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show Encapsulated structures that are round, oval or bean shaped.  
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pernicious   show
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show small, pinpoint hemorrhages.  
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plasma   show
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plasminogen   show
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show (also thrombocyte) A minute, irregularly shaped, cytoplasmic body found in blood plasma that promotes blood clotting and has no definite nucleus, no DNA, and no hemoglobin.  
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show Any of several hemorrhagic states characterized by patches of purplish discoloration resulting from extravasation of blood into the skin and mucous membranes.  
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show The fluid portion of plasma that remains when clotting factors in plasma form a blood clot.  
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show A rounded lymphoid organ, located in the left upper quadrant of the abdomen.  
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stasis   show
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thalassemia   show
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thrombus (pl. thrombi)   show
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show A lymphoid organ with a pink color and a grainy consistency.  
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show A polymerase that catalyzes the formation of RNA from a DNA template in the process of transcription.  
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show A preparation of killed microorganisms, living attenuated organisms, or living fully virulent organisms that is administered to produce or artificially increase immunity to a particular disease.  
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Hematopoiesis   show
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show Five types of leukocytes, which are identified by granules and nucleus. Categorized by granulocytes and agranulocytes. Granulocytes have granules in the cytoplasm and agranulocytes don't have granules.  
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show Most common: make up 54-62% of leukocytes Granulocytes with many large granules that remain neutral when stained. Nucleus has many lobes and segments. Develop in red marrow, eventually become immature band or stab.  
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show Makes up 1-3% of leukocytes. Granulocytes with many large granules. Granules stain pink when exposed to eosin. Nucleus has 2 lobes. Develop in red marrow from stem cells.  
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show Least common: makes up 0.5-1% of leukocytes. Granulocytes with many large granules. Granules stain blue when exposed to hematoxylin. Nucleus has more than one lobe. Develop from stem cells in red marrow.  
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show Makes up 25-335% of leukocytes. Agranulocytes. Nucleus fills most of cell. Develop from lymphoblasts.  
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show Make up 3-7% of leukocytes. Largest type of leukocytes, agranulocytes. Nucleus is large and shaped like a kidney bean. Develop in marrow from stem cells and mature in stages.  
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Thrombocytes (Platelets) (Thromb/o- = Blood clot) (-cyte = cell)   show
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