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23 Cards in this Set
- Front
- Back
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blood
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a specilized type of connective tissue because it contains cells, fibers, and liquid groud substances
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blood has two major parts
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-plasma
-formed elements |
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pasma
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straw colored fluid that contains mostly water proteins and other solutes
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formed elements
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consist of the following blood cells and cells fragments scattered in the plasma:erthrocytes(redblood cells)
leukocytes(white blood cells) thrombocytes(platletes) |
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erythrocytes(red blood cells) description
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-compromise 99.9 of all blood cells
-biconcave discs -no nucleus in mature cell -filled with the protein hemoglobin |
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erthrocytes(red blood cells) function is too
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-transport O2 from lungs to body cells
-transport CO2 from body to lungs |
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leukocytes(white blood cells) desctiption
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-lesss than 0.1 of all blood cells
-5 types -some have granules in cytoplasm -nucleus present in all types |
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leukocytes (white blood cells) whats it function
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fight against pathogens such as bacteria and viruses
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thrombocytes(platelets) description
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-less the 0.1 of formed elements
-cell fragments -no nucleus -contains enzymes |
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thrombocytes(platelets) whats its function
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involved in blood clotting
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a tube of blood is
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55%-plasma
1%-leukocytes and platelets 45%-erythocytes |
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leukocytes(white blood cells, WBC) are divided into two groups
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granulcytes and agranulocytes
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granulcytes
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contain granules in the cytoplasm of the cell and include neutrophils,eosinophils, and basophils
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agranulocytes
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have no granuiles in the cytoplasm and include monocytes and lymphocytes
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way to remeber leukocytes from most to least common Never Let Monkeys Eat Bannas
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Neutrophils
lymphocytes monocytes eosinophils basophils |
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neutrophil(features/comments)
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-nucleus has 3-5 lobes
-contains least amount of granules named after the fact that granules are netutral-dont stain well |
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neutrophil (functions)
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-phagocytic cell
-engulfs bacteria and debris in tissue |
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eosinophil(features/comments)
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-nucleus usually 2 lobes
-large granules that stain brightly -named after dye used to atain granules-eosin dye |
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eosinphil(function)
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-phagocytic cell
-fights parasitisic infections -engulfs anything labled with antibodies -reduce inflamation |
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lymphocyte(features/comments)
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-round nucleus take up nearly entire cell volume
-slightly larger than RBC |
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lymphocyte(function)
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-part of immune response
-defends against pathogens and toxins |
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monocytes(features/comments)
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-largest WBC
-nucleus varies from horseshoe to kidney shape -nucleus take up about half the cell volume |
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monocytes(functions)
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-phagocytic cell
- engulfs pathogens and debris in tissue |
