• Question: How small is our blood cell?

    Asked by gab2000 to Bob, Katie, Nisha, Sallie, Vee on 28 Jun 2012.
    • Photo: Sallie Baxendale

      Sallie Baxendale answered on 28 Jun 2012:

      There is a fantastic website called http://www.cellsalive.com that shows you exactly how big blood cells and all sorts of other organisms are in relation to a pin head. The animations are brilliant. Check it out.

    • Photo: Vee Mitchell

      Vee Mitchell answered on 29 Jun 2012:

      If you are talking about the red blood cells (the ones that carry oxygen around the body) then they about 6-8 microns wide and about 2 microns thick (a micron is 1,000th of a mm), SO if you had 140 red blood cells end to end they would fill the 1mm space on your ruler.

    • Photo: Bob Bonwick

      Bob Bonwick answered on 2 Jul 2012:

      Vee nailed that one. 6-8 microns for red blood cells.

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