Blood cell 67159 221602447 2008-06-25T06:47:30Z MarcM1098 6447943 capital letter {{articleissues|article=y|onesource=February 2008|restructure=February 2008}} A '''blood cell''' (also called '''blood corpuscle''') is any cell of any type normally found in [[blood]]. In [[mammal]]s, these fall into three general categories: *[[Red blood cell]]s *[[White blood cell]]s *[[Platelet]]s Together, these three kinds of blood cells sum up for a total 45% of blood tissue (55% is [[Blood plasma|plasma]]).<ref>{{cite book | last = Maton | first = Anthea | authorlink = | coauthors = Jean Hopkins, Charles William McLaughlin, Susan Johnson, Maryanna Quon Warner, David LaHart, Jill D. Wright | title = Human Biology and Health | publisher = Prentice Hall | date = 1993 | location = Englewood Cliffs, New Jersey, USA | pages = | url = | doi = | id = | isbn = 0-13-981176-1}}</ref> {|class="wikitable" |+Comparison |- ! [[Cell type]] !! Primary function !! Lifetime |- ! [[Red blood cell]]s | transport of [[oxygen]] || 120 days |- ! [[White blood cell]]s | produces [[Antibody|antibodies]] to fight infection || days to years |- ! [[Platelet]]s | blood clotting || 8 days |} ==Disorders== {{See also|hematologic diseases}} A decrease in number of blood cells is called [[cytopenia]]. An increase, on the other hand, is called [[polycythemia]].<ref>[http://www.nlm.nih.gov/medlineplus/ency/article/000589.htm Polycythemia vera] nlm.nih.gov</ref> ==References== {{reflist}} ==External links== *[http://gslc.genetics.utah.edu/units/basics/blood/blood.cfm What is Blood?] from the Genetic Science Learning Center at the University of Utah. *[http://www.microbiologybytes.com/iandi/bloodmap/Blood.html Cells of the blood] ---- {{circulatory-stub}} [[Category:Blood cells| ]] [[da:Blodlegeme]] [[de:Blutzellen]] [[fr:Cellule sanguine]] [[id:Sel darah]] [[he:תא דם]] [[nl:Bloedcel]] [[ja:血球]] [[no:Blodcelle]] [[nn:Blodlekam]] [[pl:Komórki krwi]] [[pt:Célula sanguínea]] [[simple:Blood cell]] [[sl:Krvnička]] [[sr:Крвна ћелија]] [[fi:Verisolu]] [[sv:Blodkropp]] [[tr:Kan hücreleri]] [[zh:血细胞]]