• Question: how mutch blood cells are in your finger

    Asked by to Andrei on 19 Jun 2014. This question was also asked by .
    • Photo: Andrei Luchici

      Andrei Luchici answered on 19 Jun 2014:


      That is a really good question.

      Compared to other cell types, such as skin cells, blood cells are not stationary. They are constantly transported around our organism by the blood through veins, arteries, and capillaries (very tine blood vessels).

      To answer your question, I don’t think is possible to count the number of blood cells at one time in your finger. What someone could do, and this is how your blood cell count is done, is draw a small sample of blood from your finger, count the cells in that sample, and then estimate how many cells are in your organism.

      For example, an adult male should have around:
      – 4.5 to 6.5 million red blood cells per million per cubic millimetre of blood,
      – 4,000 to 11,000 white blood cells per million per cubic millimetre of blood,
      – 2,000 to 7,500 neutrophils per cubic millimetre of blood,
      – 1,300 to 4,000 lymphocytes per cubic millimetre of blood,
      – 150,000 to 440,000 thrombocytes per cubic millimetre of blood.

      Add them up and you will have an estimate of the number of blood cells per million per cubic millimetre of blood. I bet that would be a HUGE number!

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