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30 Cards in this Set
- Front
- Back
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blood has two components what are they...
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blood plasma - a watery liquid extracellular matrix that contains dissolved substances
formed elements - cells and cell fragments |
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........ is 45% formed elements and ......% blood plasma
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plasma
55% |
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what are the characteristics of leukocytes?
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1. they have nuclei
2. they do not contain Hgb 3. they are less numerous than RBCs 4. production of WBCs occurs in red bone marrow 5. they are classified as granular or agranular |
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what is a granular leukocyte?
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it contains chemical filled cytoplasmic vesicles
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blood is a connective tissue...t or f
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true
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when the formed elements are removed from blood a straw colored liquid called ......... is left.
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blood plasma
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blood plasma is about .....% water and .....% solutes.
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91.5%
8.5% |
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which plasma protein is produced by the liver and plays an essential role in blood clotting
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fibrinogen
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blood is a connective tissue that consists of...
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blood plasma
formed elements (red blood cells, white blood cells, platelets) |
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what is the function of hemoglobin in red blood cells?
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to transport oxygen and some carbon dioxide
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blood helps to regulate pH, body temperature, and water content of cells. t or f
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true
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blood is 55% blood plasma and 45% formed elements. name the formed elements
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wbc
rbc platelets |
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blood plasma which is 55% of the blood matrix is what percentage of water?
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91.5%
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blood provides protection through what?
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clotting...
and combating toxins and microbes through certain phagocytic wbcs or specialized blood plasma proteins |
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red bone marrow is a connective tissue. t or f
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true
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of the types of WBCs, which ones are agranular leukocytes?
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lymphocytes and monocytes
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what are agranular leukocytes
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contains granules that are not visible under a light microscope
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what are the characteristics of a lympocyte (three cells)
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b cells
t cells natural killer cells |
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where do monocytes function?
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in phagocytosis
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which function in phagocytosis
1 monocytes 2 neutrophils 3 eosinophils 4. 1 and 2 5. 1 2 and 3 |
which function in phagocytosis
4. 1 and 2 monocytes and neutrophils |
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name the glaular leukocytes
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basophils
neutrophils eosinophils |
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what is the function of basophils?
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to liberate heparin, histamine, and serotonin in allergic reactions and that intensify the inflammatory reaction
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what is phagocytosis?
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the ability to ingest bacteria and dispose of dead matter
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what is the life expectancy of a wbc?
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several months or years but usually only live for a few days
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the most numerous wbc in a differential wbc count of a healthy individual are the..........
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neutrophils
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what is the importance of emigration?
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WBCs leave the bloodstream
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what does an elevated WBC count indicate?
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infection
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what is erythropoiesis
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the production of red blood cells
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.
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.
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state the difference between a barometric and radar altimeter
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-barometric gives aircraft altitude over sea level by sensing the difference in air pressure as the a/c changes altitude
-radar gives a/c altitude over ground level by transmitting a singal and bouncing it off the surface of the earth |
