Blood Flashcards
plasma
liquid component of blood consists of water, electrolytes, protiens accounts for more than 1/2 of total blood volume important for regulating B and body temp
red blood cells (erythrocytes)
make up 40% of blood volume contain hemoglobin (gives blood red color, enables O2 bond) when # is too low= anemia, less O2, results in fatigue and weakness when # is too high= polycythemia, blood is too thick, increased risk of stroke/heart attack
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platelets (thrombocytes)
assist in blood clotting via clump formation @ wound low # = increased risk for bruising/ abnormal bleeding high # (thrombocythemia)= increased risk of thrombosis/ stroke/ heart attack
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White Blood Cells (leukocytes)
protect against infection low # (leukopenia) = increases risk of infection high # (leukocytosis) may = infection/ leukemia
White Blood Cell: Neutrophils
ingest bacteria/debris
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White Blood Cell: Lymphocytes
3 main types: T lymphocytes & natural killers detect and destroy cancer cells B lymphocytes develop into cells that produce antibodies
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White Blood Cells: Monocytes
ingest dead/damaged cells, defend against infectious organisms
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White Blood Cells: Eosinophils
kill parasites, destroy cancer cells, involved in allergic response
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White Blood Cells: Basophils
participate in allergic response
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